List of United States Senate election results by state

The following table shows regularly-scheduled United States Senate elections by state by year. The table does not include appointments or special elections, though it does include elections that occurred upon a state delegation's admission or readmission to the Senate. The table also includes elections that filled vacancies to unexpired terms that had never been filled due to legislative deadlock or an elected candidate's failure to qualify. The table does not denote post-election party switching. Note that, particularly prior to the ratification of the 17th Amendment in 1913, many regular elections took place in odd years rather than in the preceding even years.

Legend

Label Party Label Party Label Party Label Party Label Party
PA Pro-Administration Faction Ad Adams Men FS Free Soil Party SR Silver Republican Party — No regularly-scheduled election
AA Anti-Administration Faction D Democratic Party A American Party FL Farmer-Labor Party
F Federalist Party NR National Republican Party[1] R Republican Party Po Populist Party
DR Democratic-Republican Party Nu Nullifier Party U Unionists[2] I Independent
J Jacksonites W Whig Party Ra Readjuster Party Sp Split result[3]

Table

    First Party System         Second Party System     Third Party System     Fourth Party System     Fifth Party System     Sixth Party System[4]
Year →
Class →
Congress →		 1789
1
1st		 1789
2
1st		 1789
3
1st		 1790
1
2nd		 1792
2
3rd		 1794
3
4th		 1796
1
5th		 1798
2
6th		 1800
3
7th		 1802
1
8th		 1804
2
9th		 1806
3
10th		 1808
1
11th		 1810
2
12th		 1812
3
13th		 1814
1
14th		 1816
2
15th		 1818
3
16th		 1820
1
17th		 1822
2
18th		 1824
3
19th		 1826
1
20th		 Year →
Class →
Congress →		 1828
2
21st		 1830
3
22nd		 1832
1
23rd		 1834
2
24th		 1836
3
25th		 1838
1
26th		 1840
2
27th		 1842
3
28th		 1844
1
29th		 1846
2
30th		 1848
3
31st		 1850
1
32nd		 1852
2
33rd		 1854
3
34th		 Year →
Class →
Congress →		 1856
1
35th		 1858
2
36th		 1860
3
37th		 1862
1
38th		 1864
2
39th		 1866
3
40th		 1868
1
41st		 1870
2
42nd		 1872
3
43rd		 1874
1
44th		 1876
2
45th		 1878
3
46th		 1880
1
47th		 1882
2
48th		 1884
3
49th		 1886
1
50th		 1888
2
51st		 1890
3
52nd		 1892
1
53rd		 1894
2
54th		 Year →
Class →
Congress →		 1896
3
55th		 1898
1
56th		 1900
2
57th		 1902
3
58th		 1904
1
59th		 1906
2
60th		 1908
3
61st		 1910
1
62nd		 1912
2
63rd		 1914
3
64th		 1916
1
65th		 1918
2
66th		 1920
3
67th		 1922
1
68th		 1924
2
69th		 1926
3
70th		 1928
1
71st		 1930
2
72nd		 Year →
Class →
Congress →		 1932
3
73rd		 1934
1
74th		 1936
2
75th		 1938
3
76th		 1940
1
77th		 1942
2
78th		 1944
3
79th		 1946
1
80th		 1948
2
81st		 1950
3
82nd		 1952
1
83rd		 1954
2
84th		 1956
3
85th		 1958
1
86th		 1960
2
87th		 1962
3
88th		 1964
1
89th		 1966
2
90th		 Year →
Class →
Congress →		 1968
3
91st		 1970
1
92nd		 1972
2
93rd		 1974
3
94th		 1976
1
95th		 1978
2
96th		 1980
3
97th		 1982
1
98th		 1984
2
99th		 1986
3
100th		 1988
1
101st		 1990
2
102nd		 1992
3
103rd		 1994
1
104th		 1996
2
105th		 1998
3
106th		 2000
1
107th		 2002
2
108th		 2004
3
109th		 2006
1
110th		 2008
2
111th		 2010
3
112th		 2012
1
113th		 2014
2
114th		 2016
3
115th		 2018
1
116th
Alabama     2DR — DR J — Alabama D D — D D — D D — D D — D D Alabama — D — — — — 2R D R — D D — D D — D D — D Alabama D — D D — D D — D D — D D — D D — D Alabama D — D D — D D — D D — D D — D D — D Alabama D — D D — D R — D D — D D — R R — R R — R R — R R —
Alaska       Alaska   Alaska   Alaska   Alaska   2D D D — D Alaska D — R D — R R — R R — R R — R R — R R — D R — R R —
Arizona       Arizona   Arizona   Arizona   2D D D — R D — D D — Arizona D D — D D — D D — D R — D R — D R — Arizona R R — R D — R D — R D — R R — R R — R R — R R — R TBD
Arkansas       Arkansas   2D — D D — D D — D D Arkansas — D D — — — 2R R R — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — R D — D D — D R — R R —
California       California   2D — D California D — D R — R D — R AM — D R — R D — R D — California R R — R R — R R — D R — R R — R R — California D R — D R — D R — R R — R D — R R — California D D — D R — D R — D R — D D — D D — D D — D D — D TBD
Colorado       Colorado   Colorado   2R R — R R — R SR — R Colorado D — D D — R D — D D — R R — R R — D Colorado D — D D — D R — D R — R D — R R — R Colorado R — D D — R D — R D — R R — R R — R D — D D — R D —
Connecticut PA — PA PA — F F — F F — F F — F F — DR DR — AJ Ad Connecticut — AJ AJ — D W — D W — W D — R Connecticut R — R R — R R — LR D — R R — R R — R R — Connecticut R R — R R — R R — R R — R R — R R — Connecticut D D — R D — D R — D R — R D — D D — Connecticut D R — D R — D R — D D — D D — D D — D I — D D — D TBD
Delaware PA AA — PA PA — F F — F F — F F — F F — F F — J Delaware AJ — AJ W — W W — W W — D W — Delaware D D — D D — D D — D D — D D — D R — D D Delaware — R R — R R — R D — D R — D R — R R Delaware — R D — D R — R D — R D — R R — R R Delaware — R D — R D — R D — R D — R D — D D — D D — D D — TBD
Florida       Florida   2D — W D — D Florida D — — — — — 2R — R D — D D — D D — D D — Florida D D — D D — D D — D D — D D — D D — Florida D D — D D — D D — D D — D D — D D — Florida R D — D D — R D — D R — D R — D D — R D — R D — R TBD
Georgia — AA AA — AA F — DR DR — DR DR — DR DR — DR DR — DR J — Georgia D D — D D — W D — W W — D D Georgia — D — — — R — D D — D D — D D — D D — D Georgia D — D D — D D — D D — D D — D D — D Georgia D — D D — D D — D D — D D — D D — D Georgia D — D D — D R — D D — D R — D R — R R — R R — R R —
Hawaii       Hawaii   Hawaii   Hawaii   Hawaii   Sp D R R — Hawaii D R — D D — D D — D D — D D — D D — D D — D D — D TBD
Idaho       Idaho   Idaho   2R — R Idaho Po — SR R — R R — R R — R R — R R — R Idaho D — R D — R D — D R — R D — R D — R Idaho D — R D — R R — R R — R R — R R — R R — R R — R R —
Illinois     2DR — DR J — Illinois D D — D D — D D — D D — D D Illinois — D R — R R — R R — I R — R R — R D — R Illinois R — R R — R R — D R — R R — R R — D Illinois D — D D — R D — D R — D R — D R — R Illinois R — R D — R D — D D — D D — D R — D D — D R — D D —
Indiana     2DR DR DR — AJ Ad Indiana — AJ D — W W — D D — D D — D Indiana D — R D — R R — R D — D R — D D — D D — Indiana R R — R R — D D — D R — R D — R R — Indiana D D — D R — R R — R R — R D — D D — Indiana D D — D R — R R — R R — R R — D R — D R — R D — R TBD
Iowa       Iowa   2D — D FS Iowa — R R — R R — R R — R R — R R — R R — R Iowa R — R R — R R — R R — R R — R R — R Iowa D — D D — R R — D R — R R — R R — R Iowa D — D D — R R — D R — D R — D R — D R — D R — R R —
Kansas       Kansas   Kansas   2R — R R — R R — R R — R R — R Po — R Kansas Po — R R — R R — D R — R R — R R — R Kansas D — R R — R R — R R — R R — R R — R Kansas R — R R — R R — R R — R R — R R — R R — R R — R R —
Kentucky   2AA F — DR DR — DR DR — DR DR — DR DR — DR J — Kentucky D AJ — W W — W W — W W — W W Kentucky — D D — D D — D D — D D — D D — D D — D Kentucky R — D D — D R — D D — D R — R D — D Kentucky D — D D — D D — D D — D R — R R — R Kentucky R — D D — D D — R D — R D — R R — R R — R R — R R —
Year →
Class →
Congress →		 1789
1
1st		 1789
2
1st		 1789
3
1st		 1790
1
2nd		 1792
2
3rd		 1794
3
4th		 1796
1
5th		 1798
2
6th		 1800
3
7th		 1802
1
8th		 1804
2
9th		 1806
3
10th		 1808
1
11th		 1810
2
12th		 1812
3
13th		 1814
1
14th		 1816
2
15th		 1818
3
16th		 1820
1
17th		 1822
2
18th		 1824
3
19th		 1826
1
20th		 Year →
Class →
Congress →		 1828
2
21st		 1830
3
22nd		 1832
1
23rd		 1834
2
24th		 1836
3
25th		 1838
1
26th		 1840
2
27th		 1842
3
28th		 1844
1
29th		 1846
2
30th		 1848
3
31st		 1850
1
32nd		 1852
2
33rd		 1854
3
34th		 Year →
Class →
Congress →		 1856
1
35th		 1858
2
36th		 1860
3
37th		 1862
1
38th		 1864
2
39th		 1866
3
40th		 1868
1
41st		 1870
2
42nd		 1872
3
43rd		 1874
1
44th		 1876
2
45th		 1878
3
46th		 1880
1
47th		 1882
2
48th		 1884
3
49th		 1886
1
50th		 1888
2
51st		 1890
3
52nd		 1892
1
53rd		 1894
2
54th		 Year →
Class →
Congress →		 1896
3
55th		 1898
1
56th		 1900
2
57th		 1902
3
58th		 1904
1
59th		 1906
2
60th		 1908
3
61st		 1910
1
62nd		 1912
2
63rd		 1914
3
64th		 1916
1
65th		 1918
2
66th		 1920
3
67th		 1922
1
68th		 1924
2
69th		 1926
3
70th		 1928
1
71st		 1930
2
72nd		 Year →
Class →
Congress →		 1932
3
73rd		 1934
1
74th		 1936
2
75th		 1938
3
76th		 1940
1
77th		 1942
2
78th		 1944
3
79th		 1946
1
80th		 1948
2
81st		 1950
3
82nd		 1952
1
83rd		 1954
2
84th		 1956
3
85th		 1958
1
86th		 1960
2
87th		 1962
3
88th		 1964
1
89th		 1966
2
90th		 Year →
Class →
Congress →		 1968
3
91st		 1970
1
92nd		 1972
2
93rd		 1974
3
94th		 1976
1
95th		 1978
2
96th		 1980
3
97th		 1982
1
98th		 1984
2
99th		 1986
3
100th		 1988
1
101st		 1990
2
102nd		 1992
3
103rd		 1994
1
104th		 1996
2
105th		 1998
3
106th		 2000
1
107th		 2002
2
108th		 2004
3
109th		 2006
1
110th		 2008
2
111th		 2010
3
112th		 2012
1
113th		 2014
2
114th		 2016
3
115th		 2018
1
116th
Louisiana     2DR — DR DR — DR AJ — Louisiana D D — D D — W W — D D — W D Louisiana — D — — — — 2R R D — R D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D R — D R — R R —
Maine     2DR DR — J Maine AJ — D D — D W — D D — D W — Maine D R — R R — R R — R R — R R — R R — R R Maine — R R — R R — D R — R R — R R — R R Maine — R R — R R — R R — R R — D R — D R Maine — D D — D R — D R — D R — R R — R R — R R — I R — TBD
Maryland PA — PA PA — F F — DR DR — DR DR — F F — DR DR — J J Maryland — AJ AJ — W W — W W — W W — W Maryland A — D U — D D — D D — D D — D D — D D — Maryland R R — D D — D D — D R — R D — D R — Maryland D D — D D — D D — R R — R R — D D — Maryland R R — R D — R D — D D — D D — D D — D D — D D — D TBD
Massachusetts PA PA — PA PA — F F — F F — F DR — F F — F F — Ad Massachusetts AJ — AJ W — W W — W W — FS W — Massachusetts R R — R R — R R — R R — R R — R R — R R Massachusetts — R R — R R — R R — R D — R R — D D Massachusetts — D R — D R — R R — D R — D R — D R Massachusetts — D R — D D — D D — D D — D D — D D — D D — D D — TBD
Michigan       Michigan   2D W — D D — D D — Michigan R R — R R — R R — R R — R R — R R — R R Michigan — R R — R R — R R — R R — D R — R R Michigan — R D — R R — R R — R D — D D — D R Michigan — D R — D D — D D — D D — R D — D D — D D — D D — TBD
Minnesota       Minnesota   Minnesota   Sp[5] — R R — R R — R R — R R — R R — R R Minnesota — R R — R R — R R — R R — FL R — FL R Minnesota — FL FL — R R — R D — R D — D D — D D Minnesota — D D — D R — R R — R D — R D — D R — D D — D D — TBD
Mississippi     2DR — DR DR — J Mississippi D — AJ D — W D — D D — D D — Mississippi D D — — — — — 2R — R D — D D — D D — D D Mississippi — D D — D D — D D — D D — D D — D D Mississippi — D D — D D — D D — D D — D D — D D Mississippi — D D — D R — D R — R R — R R — R R — R R — R R — TBD
Missouri     2DR — AJ J Missouri — D D — D D — D D — D W — D Missouri D — D U — R R — D D — D D — D D — D D — Missouri D D — D R — D D — D D — R D — D R — Missouri D D — D D — R R — D D — D D — D D — Missouri D D — D R — D R — R R — R R — R R — R D — R D — R TBD
Montana       Montana   Montana   2R — R R Montana — D D — R R — D D — D D — D D — D D Montana — D D — D D — R D — D D — D D — D D Montana — D D — D D — D D — R D — R D — R D — D D — D R — TBD
Nebraska       Nebraska   Nebraska   2R R R — R R — R R — R R — Po R Nebraska — R R — R R — D R — D R — R R — R R Nebraska — D I — R R — R R — R R — R R — R R Nebraska — R R — D D — D D — D D — D R — D R — D R — D R — TBD
Nevada       Nevada   Nevada   2R R R — R R — R D — R R — R SR — Nevada Si SR — D R — D R — D D — R D — R D — Nevada D D — D D — D R — D R — D D — D D — Nevada D D — R D — R R — D D — D D — D R — D R — D R — D TBD
New Hampshire — AA AA — PA DR — F F — DR DR — DR F — DR DR — DR J — New Hampshire AJ D — D D — D D — FS D — D R New Hampshire — R R — R R — R R — R R — R R — R R — R New Hampshire R — R R — R R — D R — R R — R R — R New Hampshire D — R R — R R — R R — R R — R R — D New Hampshire R — D D — R R — R R — R R — R R — R R — D R — D D —
New Jersey PA PA — PA PA — F F — DR DR — DR DR — DR DR — DR DR — Ad New Jersey AJ — AJ D — W W — W W — D D — New Jersey D R — D D — D R — D D — R D — D D — D R New Jersey — R R — R R — D D — R R — D R — R R New Jersey — D D — R R — R R — R R — D R — D R New Jersey — D R — D D — D D — D D — D D — D D — D D — D D — TBD
New Mexico       New Mexico   New Mexico   New Mexico   2R — D R — D D — R D New Mexico — R D — D D — D D — D D — D D — D D New Mexico — D R — R R — D R — D R — D R — D R — D D — D D — TBD
New York PA — PA AA — F F — DR DR — DR DR — F DR — F DR — AJ J New York — D D — D D — D W — W W — R New York R — R R — R R — R D — R R — R R — D D — New York R R — R R — R D — R R — R D — D D — New York D D — D D — D R — D R — R R — R D — New York R C — R D — R D — R D — R D — D D — D D — D D — D TBD
North Carolina — PA PA — AA DR — DR DR — DR DR — DR DR — DR DR — DR J — North Carolina D D — D D — W D — W W — D D North Carolina — D D — — — 2R D D — D D — D D — D D — Po North Carolina R — D D — D D — D D — D D — D D — D North Carolina D — D D — D D — D D — D D — D D — D North Carolina D — R D — R R — R D — R R — R D — R R — D R — R R —
North Dakota       North Dakota   North Dakota   2R R D — North Dakota R R — R R — R R — R R — R R — R R — North Dakota R R — R R — D R — R R — R R — R D — North Dakota R D — R D — R D — D D — D D — D D — D D — R D — R TBD
Year →
Class →
Congress →		 1789
1
1st		 1789
2
1st		 1789
3
1st		 1790
1
2nd		 1792
2
3rd		 1794
3
4th		 1796
1
5th		 1798
2
6th		 1800
3
7th		 1802
1
8th		 1804
2
9th		 1806
3
10th		 1808
1
11th		 1810
2
12th		 1812
3
13th		 1814
1
14th		 1816
2
15th		 1818
3
16th		 1820
1
17th		 1822
2
18th		 1824
3
19th		 1826
1
20th		 Year →
Class →
Congress →		 1828
2
21st		 1830
3
22nd		 1832
1
23rd		 1834
2
24th		 1836
3
25th		 1838
1
26th		 1840
2
27th		 1842
3
28th		 1844
1
29th		 1846
2
30th		 1848
3
31st		 1850
1
32nd		 1852
2
33rd		 1854
3
34th		 Year →
Class →
Congress →		 1856
1
35th		 1858
2
36th		 1860
3
37th		 1862
1
38th		 1864
2
39th		 1866
3
40th		 1868
1
41st		 1870
2
42nd		 1872
3
43rd		 1874
1
44th		 1876
2
45th		 1878
3
46th		 1880
1
47th		 1882
2
48th		 1884
3
49th		 1886
1
50th		 1888
2
51st		 1890
3
52nd		 1892
1
53rd		 1894
2
54th		 Year →
Class →
Congress →		 1896
3
55th		 1898
1
56th		 1900
2
57th		 1902
3
58th		 1904
1
59th		 1906
2
60th		 1908
3
61st		 1910
1
62nd		 1912
2
63rd		 1914
3
64th		 1916
1
65th		 1918
2
66th		 1920
3
67th		 1922
1
68th		 1924
2
69th		 1926
3
70th		 1928
1
71st		 1930
2
72nd		 Year →
Class →
Congress →		 1932
3
73rd		 1934
1
74th		 1936
2
75th		 1938
3
76th		 1940
1
77th		 1942
2
78th		 1944
3
79th		 1946
1
80th		 1948
2
81st		 1950
3
82nd		 1952
1
83rd		 1954
2
84th		 1956
3
85th		 1958
1
86th		 1960
2
87th		 1962
3
88th		 1964
1
89th		 1966
2
90th		 Year →
Class →
Congress →		 1968
3
91st		 1970
1
92nd		 1972
2
93rd		 1974
3
94th		 1976
1
95th		 1978
2
96th		 1980
3
97th		 1982
1
98th		 1984
2
99th		 1986
3
100th		 1988
1
101st		 1990
2
102nd		 1992
3
103rd		 1994
1
104th		 1996
2
105th		 1998
3
106th		 2000
1
107th		 2002
2
108th		 2004
3
109th		 2006
1
110th		 2008
2
111th		 2010
3
112th		 2012
1
113th		 2014
2
114th		 2016
3
115th		 2018
1
116th
Ohio     2DR — DR DR — DR DR — DR DR — AJ Ad Ohio — AJ D — D D — D W — FS W — D Ohio R — R R — R D — R D — D R — D R — D R — Ohio R R — R R — R D — R D — R R — R R — Ohio D D — R R — R R — R R — D D — D D — Ohio R R — D D — D D — D D — D R — R R — R D — R D — R TBD
Oklahoma       Oklahoma   Oklahoma       Oklahoma   2D D — D D — D R — R D — D Oklahoma D — D D — R D — D D — D D — D D — D Oklahoma R — R R — D R — D R — D R — R R — R R — R R — R R —
Oregon       Oregon   Oregon   2D R — R R — D R — D D — R R — R R — R Oregon R — R R — R D — D D — R R — R R — R Oregon R — R R — R R — R R — D D — D D — R Oregon R — R R — R R — R R — R R — R D — R D — D D — D D —
Pennsylvania AA — PA AA — F F — DR DR — DR DR — DR DR — DR DR — AJ J Pennsylvania — D D — D D — D D — W D — D Pennsylvania R — R D — R R — R D — R R — R R — R R — Pennsylvania R R — R R — R R — R R — R R — R R — Pennsylvania R D — R D — D R — R R — D R — D R — Pennsylvania R R — R R — R R — R R — R R — R R — R D — R D — R TBD
Rhode Island PA AA — PA PA — F F — DR DR — F DR — F F — DR DR — Ad Rhode Island AJ — AJ W — W W — W W — D D — Rhode Island R R — R R — R R — R R — R R — R R — R R Rhode Island — R R — R R — R R — D R — D R — R R Rhode Island — D D — D D — D D — D D — D D — D D Rhode Island — D D — R D — R D — R D — R D — R D — D D — D D — TBD
South Carolina — PA PA — AA F — DR DR — DR DR — DR DR — DR DR — DR J — South Carolina D Nu — Nu W — D D — D D — D D South Carolina — D — — — — 2R R R — D D — D D — D D — D South Carolina D — D D — D D — D D — D D — D D — D South Carolina D — D D — D D — D D — D D — D D — R South Carolina D — R D — R D — R D — R D — R D — R R — R R — R R —
South Dakota       South Dakota   South Dakota   2R I — R South Dakota Po — R R — R R — R D — R R — R R — D South Dakota R — D R — R R — R R — R R — R D — R South Dakota D — D D — R R — R D — R D — D D — D R — D R — R R —
Tennessee     2DR DR — DR DR — DR DR — DR DR — DR DR — J Tennessee D — D W — D W — D W — W W — Tennessee D D — — — Sp R D — D D — D D — D D — D D Tennessee — D D — D D — D D — D D — D D — D D Tennessee — D D — D D — D D — D D — D D — D R Tennessee — R R — D R — D D — D D — R R — R R — R R — R R — TBD
Texas       Texas   2D — D D — Texas D D — — — — — 2R — D D — D D — D D — D D Texas — D D — D D — D D — D D — D D — D D Texas — D D — D D — D D — D D — D D — D R Texas — D R — D R — D R — D R — R R — R R — R R — R R — TBD
Utah       Utah   Utah   Utah Sp[6] R — R R — R R — R D — R D — R D — Utah D D — D D — D R — R R — R D — R D — Utah R D — R R — R R — R R — R R — R R — R R — R R — R TBD
Vermont   2AA — F F — F DR — DR DR — DR F — DR DR — AJ Ad Vermont — AJ AJ — W W — W W — W W — W Vermont R — R R — R R — R R — R R — R R — R R — Vermont R R — R R — R R — R R — R R — R R — Vermont R R — R R — R R — R R — R R — R R — Vermont R R — D R — D R — D R — D R — D R — D I — D I — D TBD
Virginia AA AA — AA AA — DR DR — DR DR — DR DR — DR DR — DR DR — J Virginia D — AJ W — W W — D D — D D — Virginia D D — U[7] N[8] — — Sp — D D — Ra Ra — D D — D D Virginia — D D — D D — D D — D D — D D — D D Virginia — D D — D D — D D — D D — D D — D D Virginia — I R — I R — R R — D R — D R — R R — D D — D D — TBD
Washington       Washington   Washington   2R R R — Washington R R — R R — R R — R R — R D — R D — Washington D D — D D — D R — D D — D D — D D — Washington D D — D D — R D — D R — D R — D D — D D — D D — D TBD
West Virginia       West Virginia   West Virginia   2U R — R D — D D — D D — D D — D R West Virginia — R R — R R — D R — R R — D R — R D West Virginia — D D — D R — D D — D D — D D — D D West Virginia — D D — D D — D D — D D — D D — D D — D D — D R — TBD
Wisconsin       Wisconsin   2D D — R Wisconsin R — R R — R R — R R — R R — R R — D D — Wisconsin R R — R R — R R — D R — R R — R R — Wisconsin D Pr — R R — R R — R R — R D — D D — Wisconsin D D — D D — R D — R D — D D — D D — D D — R D — R TBD
Wyoming       Wyoming   Wyoming   2R R R Wyoming — R R — R R — R R — D R — D R — D R Wyoming — D D — D R — D D — R D — D R — D R Wyoming — D R — R R — R R — R R — R R — R R — R R — R R — TBD
Year →
Class →
Congress →		 1789
1
1st		 1789
2
1st		 1789
3
1st		 1790
1
2nd		 1792
2
3rd		 1794
3
4th		 1796
1
5th		 1798
2
6th		 1800
3
7th		 1802
1
8th		 1804
2
9th		 1806
3
10th		 1808
1
11th		 1810
2
12th		 1812
3
13th		 1814
1
14th		 1816
2
15th		 1818
3
16th		 1820
1
17th		 1822
2
18th		 1824
3
19th		 1826
1
20th		 Year →
Class →
Congress →		 1828
2
21st		 1830
3
22nd		 1832
1
23rd		 1834
2
24th		 1836
3
25th		 1838
1
26th		 1840
2
27th		 1842
3
28th		 1844
1
29th		 1846
2
30th		 1848
3
31st		 1850
1
32nd		 1852
2
33rd		 1854
3
34th		 Year →
Class →
Congress →		 1856
1
35th		 1858
2
36th		 1860
3
37th		 1862
1
38th		 1864
2
39th		 1866
3
40th		 1868
1
41st		 1870
2
42nd		 1872
3
43rd		 1874
1
44th		 1876
2
45th		 1878
3
46th		 1880
1
47th		 1882
2
48th		 1884
3
49th		 1886
1
50th		 1888
2
51st		 1890
3
52nd		 1892
1
53rd		 1894
2
54th		 Year →
Class →
Congress →		 1896
3
55th		 1898
1
56th		 1900
2
57th		 1902
3
58th		 1904
1
59th		 1906
2
60th		 1908
3
61st		 1910
1
62nd		 1912
2
63rd		 1914
3
64th		 1916
1
65th		 1918
2
66th		 1920
3
67th		 1922
1
68th		 1924
2
69th		 1926
3
70th		 1928
1
71st		 1930
2
72nd		 Year →
Class →
Congress →		 1932
3
73rd		 1934
1
74th		 1936
2
75th		 1938
3
76th		 1940
1
77th		 1942
2
78th		 1944
3
79th		 1946
1
80th		 1948
2
81st		 1950
3
82nd		 1952
1
83rd		 1954
2
84th		 1956
3
85th		 1958
1
86th		 1960
2
87th		 1962
3
88th		 1964
1
89th		 1966
2
90th		 Year →
Class →
Congress →		 1968
3
91st		 1970
1
92nd		 1972
2
93rd		 1974
3
94th		 1976
1
95th		 1978
2
96th		 1980
3
97th		 1982
1
98th		 1984
2
99th		 1986
3
100th		 1988
1
101st		 1990
2
102nd		 1992
3
103rd		 1994
1
104th		 1996
2
105th		 1998
3
106th		 2000
1
107th		 2002
2
108th		 2004
3
109th		 2006
1
110th		 2008
2
111th		 2010
3
112th		 2012
1
113th		 2014
2
114th		 2016
3
115th		 2018
1
116th
  First Party System     Second Party System   Third Party System   Fourth Party System   Fifth Party System   Sixth Party System

Tables by Census region

Northeast

First Party System Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System[4]
State 1789 1789 1790 1792 1794 1796 1798 1800 1802 1804 1806 1808 1810 1812 1814 1816 1818 1820 1822 1824 1826 State 1828 1830 1832 1834 1836 1838 1840 1842 1844 1846 1848 1850 1852 1854 State 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Connecticut PA PA PA — F F — F F — F F — F F — DR DR — Ad Ad Connecticut — NR NR — D W — D W — W D — R Connecticut R — R R — R R — LR D — R R — R R — R R — Connecticut R R — R R — R R — R R — R R — R R — Connecticut D D — R D — D R — D R — R D — D D — Connecticut D R — D R — D R — D D — D D — D D — D I — D D — D — Connecticut
Maine Part of Massachusetts Part of Massachusetts 2DR DR — J Maine NR — D D — D W — D D — D W — Maine D R — R R — R R — R R — R R — R R — R R Maine — R R — R R — D R — R R — R R — R R Maine — R R — R R — R R — R R — D R — D R Maine — D D — D R — D R — D R — R R — R R — R R — I R — Maine
Massachusetts PA PA PA PA — F F — F F — F DR — F F — F F — Ad Massachusetts NR — NR W — W W — W W — FS W — Massachusetts R R — R R — R R — R R — R R — R R — R R Massachusetts — R R — R R — R R — R D — R R — D D Massachusetts — D R — D R — R R — D R — D R — D R Massachusetts — D R — D D — D D — D D — D D — D D — D D — D D — Massachusetts
New Hampshire AA AA — PA DR — F F — DR DR — DR F — DR DR — DR J — New Hampshire NR D — D D — D D — FS D — D R New Hampshire — R R — R R — R R — R R — R R — R R — R New Hampshire R — R R — R R — D R — R R — R R — R New Hampshire D — R R — R R — R R — R R — R R — D New Hampshire R — D D — R R — R R — R R — R R — R R — D R — D D — New Hampshire
New Jersey PA PA F F — F F — DR DR — DR DR — DR DR — DR DR — Ad New Jersey NR — NR D — W W — W W — D D — New Jersey D R — D D — D R — D D — R D — D D — D R New Jersey — R R — R R — D D — R R — D R — R R New Jersey — D D — R R — R R — R R — D R — D R New Jersey — D R — D D — D D — D D — D D — D D — D D — D D — New Jersey
New York PA PA AA — F F — DR DR — DR DR — F DR — F DR — Ad J New York — D D — D D — D W — W W — R New York R — R R — R R — R D — R R — R R — D D — New York R R — R R — R D — R R — R D — D D — New York D D — D D — D R — D R — R R — R D — New York R C — R D — R D — R D — R D — D D — D D — D D — D — New York
Pennsylvania AA PA AA — F F — DR DR — DR DR — DR DR — DR DR — Ad J Pennsylvania — D D — D D — D D — W D — D Pennsylvania R — R D — R R — R D — R R — R R — R R — Pennsylvania R R — R R — R R — R R — R R — R R — Pennsylvania R D — R D — D R — R R — D R — D R — Pennsylvania R R — R R — R R — R R — R R — R R — R D — R D — R — Pennsylvania
Rhode Island PA AA PA PA — F F — DR DR — F DR — F F — DR DR — Ad Rhode Island NR — NR W — W W — W W — D D — Rhode Island R R — R R — R R — R R — R R — R R — R R Rhode Island — R R — R R — R R — D R — D R — R R Rhode Island — D D — D D — D D — D D — D D — D D Rhode Island — D D — R D — R D — R D — R D — R D — D D — D D — Rhode Island
Vermont 2AA — F F — F DR — DR DR — DR F — DR DR — Ad Ad Vermont — NR NR — W W — W W — W W — W Vermont R — R R — R R — R R — R R — R R — R R — Vermont R R — R R — R R — R R — R R — R R — Vermont R R — R R — R R — R R — R R — R R — Vermont R R — D R — D R — D R — D R — D R — D I — D I — D — Vermont
State 1st 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th State 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 32nd 33rd 34th State 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

South

First Party System Second Party System Third Party System Civil War and Reconstruction Third Party System Fourth Party System Fifth Party System Sixth Party System[4]
State 1789 1789 1790 1792 1794 1796 1798 1800 1802 1804 1806 1808 1810 1812 1814 1816 1818 1820 1822 1824 1826 State 1828 1830 1832 1834 1836 1838 1840 1842 1844 1846 1848 1850 1852 1854 State 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Alabama 2DR — DR J — Alabama D D — D D — D D — D D — D D Alabama — D — — — — 2R D R — D D — D D — D D — D Alabama D — D D — D D — D D — D D — D D — D Alabama D — D D — D D — D D — D D — D D — D Alabama D — D D — D R — D D — D D — R R — R R — R R — R R — Alabama
Arkansas Arkansas 2D — D D — D D — D D Arkansas — D D — — — 2R R R — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — R D — D D — D R — R R — Arkansas
Delaware PA AA PA PA — F F — F F — F F — F F — F F — J Delaware NR — NR W — W W — W W — D W — Delaware D D — D D — D D — D D — D D — D R — D D Delaware — R R — R R — R D — D R — D R — R R Delaware — R D — D R — R D — R D — R R — R R Delaware — R D — R D — R D — R D — R D — D D — D D — D D — Delaware
Florida Florida 2D — W D — D Florida D — — — — — 2R — R D — D D — D D — D D — Florida D D — D D — D D — D D — D D — D D — Florida D D — D D — D D — D D — D D — D D — Florida R D — D D — R D — D R — D R — D D — R D — R D — R — Florida
Georgia AA AA — AA F — DR DR — DR DR — DR DR — DR DR — DR J — Georgia D D — D D — W D — W W — D D Georgia — D — — — R — D D — D D — D D — D D — D Georgia D — D D — D D — D D — D D — D D — D Georgia D — D D — D D — D D — D D — D D — D Georgia D — D D — D R — D D — D R — D R — R R — R R — R R — Georgia
Kentucky Part of Virginia 2AA F — DR DR — DR DR — DR DR — DR DR — DR J — Kentucky D NR — W W — W W — W W — W W Kentucky — D D — D D — D D — D D — D D — D D — D Kentucky R — D D — D R — D D — D R — R D — D Kentucky D — D D — D D — D D — D R — R R — R Kentucky R — D D — D D — R D — R D — R R — R R — R R — R R — Kentucky
Louisiana 2DR — DR DR — DR Ad — Louisiana D D — D D — W W — D D — W D Louisiana — D — — — — 2R R D — R D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D R — D R — R R — Louisiana
Maryland PA PA PA — F F — DR DR — DR DR — F F — DR DR — J J Maryland — NR NR — W W — W W — W W — W Maryland A — D U — D D — D D — D D — D D — D D — Maryland R R — D D — D D — D R — R D — D R — Maryland D D — D D — D D — R R — R R — D D — Maryland R R — R D — R D — D D — D D — D D — D D — D D — D — Maryland
Mississippi 2DR — DR DR — J Mississippi D — NR D — W D — D D — D D — Mississippi D D — — — — — 2R — R D — D D — D D — D D Mississippi — D D — D D — D D — D D — D D — D D Mississippi — D D — D D — D D — D D — D D — D D Mississippi — D D — D R — D R — R R — R R — R R — R R — R R — Mississippi
North Carolina PA PA — AA DR — DR DR — DR DR — DR DR — DR DR — DR J — North Carolina D D — D D — W D — W W — D D North Carolina — D D — — — 2R D D — D D — D D — D D — Po North Carolina R — D D — D D — D D — D D — D D — D North Carolina D — D D — D D — D D — D D — D D — D North Carolina D — R D — R R — R D — R R — R D — R R — D R — R R — North Carolina
Oklahoma Oklahoma Oklahoma Oklahoma 2D D — D D — D R — R D — D Oklahoma D — D D — R D — D D — D D — D D — D Oklahoma R — R R — D R — D R — D R — R R — R R — R R — R R — Oklahoma
South Carolina PA PA — AA F — DR DR — DR DR — DR DR — DR DR — DR J — South Carolina D Nu — Nu W — D D — D D — D D South Carolina — D — — — — 2R R R — D D — D D — D D — D South Carolina D — D D — D D — D D — D D — D D — D South Carolina D — D D — D D — D D — D D — D D — R South Carolina D — R D — R D — R D — R D — R D — R R — R R — R R — South Carolina
Tennessee 2DR DR — DR DR — DR DR — DR DR — DR DR — J Tennessee D — D W — D W — D W — W W — Tennessee D D — — — Sp R D — D D — D D — D D — D D Tennessee — D D — D D — D D — D D — D D — D D Tennessee — D D — D D — D D — D D — D D — D R Tennessee — R R — D R — D D — D D — R R — R R — R R — R R — Tennessee
Texas Texas 2D — D D — Texas D D — — — — — 2R — D D — D D — D D — D D Texas — D D — D D — D D — D D — D D — D D Texas — D D — D D — D D — D D — D D — D R Texas — D R — D R — D R — D R — R R — R R — R R — R R — Texas
Virginia AA AA AA AA — DR DR — DR DR — DR DR — DR DR — DR DR — J Virginia D — NR W — W W — D D — D D — Virginia D D — U[7] N[8] — — Sp — D D — Ra Ra — D D — D D Virginia — D D — D D — D D — D D — D D — D D Virginia — D D — D D — D D — D D — D D — D D Virginia — I R — I R — R R — D R — D R — R R — D D — D D — Virginia
West Virginia Part of Virginia Part of Virginia West Virginia Part of Virginia West Virginia 2U R — R D — D D — D D — D D — D R West Virginia — R R — R R — D R — R R — D R — R D West Virginia — D D — D R — D D — D D — D D — D D West Virginia — D D — D D — D D — D D — D D — D D — D D — D R — West Virginia
State 1st 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th State 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 32nd 33rd 34th State 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

Midwest

First Party System Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System[4]
State 1802 1804 1806 1808 1810 1812 1814 1816 1818 1820 1822 1824 1826 State 1828 1830 1832 1834 1836 1838 1840 1842 1844 1846 1848 1850 1852 1854 State 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Illinois 2DR — DR J — Illinois D D — D D — D D — D D — D D Illinois — D R — R R — R R — I R — R R — R D — R Illinois R — R R — R R — D R — R R — R R — D Illinois D — D D — R D — D R — D R — D R — R Illinois R — R D — R D — D D — D D — D R — D D — D R — D D — Illinois
Indiana 2DR DR DR — Ad Ad Indiana — NR D — W W — D D — D D — D Indiana D — R D — R R — R D — D R — D D — D D — Indiana R R — R R — D D — D R — R D — R R — Indiana D D — D R — R R — R R — R D — D D — Indiana D D — D R — R R — R R — R R — D R — D R — R D — R — Indiana
Iowa Iowa 2D — D FS Iowa — R R — R R — R R — R R — R R — R R — R Iowa R — R R — R R — R R — R R — R R — R Iowa D — D D — R R — D R — R R — R R — R Iowa D — D D — R R — D R — D R — D R — D R — D R — R R — Iowa
Kansas Kansas Kansas 2R — R R — R R — R R — R R — R Po — R Kansas Po — R R — R R — D R — R R — R R — R Kansas D — R R — R R — R R — R R — R R — R Kansas R — R R — R R — R R — R R — R R — R R — R R — R R — Kansas
Michigan Michigan 2D W — D D — D D — Michigan R R — R R — R R — R R — R R — R R — R R Michigan — R R — R R — R R — R R — D R — R R Michigan — R D — R R — R R — R D — D D — D R Michigan — D R — D D — D D — D D — R D — D D — D D — D D — Michigan
Minnesota Minnesota Minnesota Sp[5] — R R — R R — R R — R R — R R — R R Minnesota — R R — R R — R R — R R — FL R — FL R Minnesota — FL FL — R R — R D — R D — D D — D D Minnesota — D D — D R — R R — R D — R D — D R — D D — D D — Minnesota
Missouri 2DR — Ad J Missouri — D D — D D — D D — D W — D Missouri D — D U — R R — D D — D D — D D — D D — Missouri D D — D R — D D — D D — R D — D R — Missouri D D — D D — R R — D D — D D — D D — Missouri D D — D R — D R — R R — R R — R R — R D — R D — R — Missouri
Nebraska Nebraska Nebraska 2R R R — R R — R R — R R — Po R Nebraska — R R — R R — D R — D R — R R — R R Nebraska — D I — R R — R R — R R — R R — R R Nebraska — R R — D D — D D — D D — D R — D R — D R — D R — Nebraska
North Dakota North Dakota North Dakota 2R R D — North Dakota R R — R R — R R — R R — R R — R R — North Dakota R R — R R — D R — R R — R R — R D — North Dakota R D — R D — R D — D D — D D — D D — D D — R D — R — North Dakota
Ohio 2DR — DR DR — DR DR — DR DR — Ad Ad Ohio — NR D — D D — D W — FS W — D Ohio R — R R — R D — R D — D R — D R — D R — Ohio R R — R R — R D — R D — R R — R R — Ohio D D — R R — R R — R R — D D — D D — Ohio R R — D D — D D — D D — D R — R R — R D — R D — R — Ohio
South Dakota South Dakota South Dakota 2R I — R South Dakota Po — R R — R R — R D — R R — R R — D South Dakota R — D R — R R — R R — R R — R D — R South Dakota D — D D — R R — R D — R D — D D — D R — D R — R R — South Dakota
Wisconsin Wisconsin 2D D — R Wisconsin R — R R — R R — R R — R R — R R — D D — Wisconsin R R — R R — R R — D R — R R — R R — Wisconsin D Pr — R R — R R — R R — R D — D D — Wisconsin D D — D D — R D — R D — D D — D D — D D — R D — R — Wisconsin
State 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th State 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 32nd 33rd 34th State 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

West

Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System[4]
State 1850 1852 1854 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Alaska Alaska Alaska 2D D D — D Alaska D — R D — R R — R R — R R — R R — R R — D R — R R — Alaska
Arizona Arizona 2D D D — R D — D D — Arizona D D — D D — D D — D R — D R — D R — Arizona R R — R D — R D — R D — R R — R R — R R — R R — R — Arizona
California 2D — D D — D R — R D — R AM — D R — R D — R D — California R R — R R — R R — D R — R R — R R — California D R — D R — D R — R R — R D — R R — California D D — D R — D R — D R — D D — D D — D D — D D — D — California
Colorado 2R R — R R — R SR — R Colorado D — D D — R D — D D — R R — R R — D Colorado D — D D — D R — D R — R D — R R — R Colorado R — D D — R D — R D — R R — R R — R D — D D — R D — Colorado
Hawaii Hawaii Hawaii Sp D R R — Hawaii D R — D D — D D — D D — D D — D D — D D — D D — D — Colorado
Idaho 2R — R Idaho Po — SR R — R R — R R — R R — R R — R Idaho D — R D — R D — D R — R D — R D — R Idaho D — R D — R R — R R — R R — R R — R R — R R — R R — Idaho
Montana 2R — R R Montana — D D — R R — D D — D D — D D — D D Montana — D D — D D — R D — D D — D D — D D Montana — D D — D D — D D — R D — R D — R D — D D — D R — Montana
Nevada 2R R R — R R — R D — R R — R SR — Nevada Si SR — D R — D R — D D — R D — R D — Nevada D D — D D — D R — D R — D D — D D — Nevada D D — R D — R R — D D — D D — D R — D R — D R — D — Nevada
New Mexico New Mexico 2R — D R — D D — R D New Mexico — R D — D D — D D — D D — D D — D D New Mexico — D R — R R — D R — D R — D R — D R — D D — D D — New Mexico
Oregon 2D R — R R — D R — D D — R R — R R — R Oregon R — R R — R D — D D — R R — R R — R Oregon R — R R — R R — R R — D D — D D — R Oregon R — R R — R R — R R — R R — R D — R D — D D — D D — Oregon
Utah Utah Sp[6] R — R R — R R — R D — R D — R D — Utah D D — D D — D R — R R — R D — R D — Utah R D — R R — R R — R R — R R — R R — R R — R R — R — Utah
Washington 2R R R — Washington R R — R R — R R — R R — R D — R D — Washington D D — D D — D R — D D — D D — D D — Washington D D — D D — R D — D R — D R — D D — D D — D D — D — Washington
Wyoming 2R R R Wyoming — R R — R R — R R — D R — D R — D R Wyoming — D D — D R — D D — R D — D R — D R Wyoming — D R — R R — R R — R R — R R — R R — R R — R R — Wyoming
State 32nd 33rd 34th 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

Analytical tables

Last updated after the 2014 elections.

Results

First Party System Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System Overall since 1828
State DR votes F votes % DR D votes NR/W votes Other votes % D D votes R votes Other votes % D D votes R votes Other votes % D State D votes R votes Other votes % D D votes R votes Other votes % D D votes R votes Other votes % D
Alabama 3 0 100 10 0 0 100 9 3 0 75 12 0 0 100 Alabama 12 0 0 100 8 8 0 50 51 11 0 82
Alaska Alaska 5 0 0 100 3 13 0 19 8 13 0 38
Arizona 7 1 0 88 Arizona 9 3 0 75 3 13 0 19 19 17 0 53
Arkansas 8 0 0 100 9 4 0 69 12 0 0 100 Arkansas 12 0 0 100 13 3 0 81 54 7 0 89
California 3 0 0 100 6 6 1 46 1 11 0 8 California 4 8 0 33 13 3 0 81 27 28 1 48
Colorado 0 7 1 0 7 5 0 58 Colorado 6 6 0 50 7 9 0 44 20 27 1 42
Connecticut 2 8 20 3 5 1 33 1 11 1 8 0 12 0 0 Connecticut 8 4 0 67 13 3 0 81 24 31 7 39
Delaware 0 10 0 1 8 0 11 13 1 0 93 3 9 0 25 Delaware 4 8 0 33 11 5 0 69 32 31 8 45
Florida 4 1 0 80 8 3 0 73 12 0 0 100 Florida 12 0 0 100 10 6 0 63 46 9 1 82
Georgia 9 1 90 7 3 0 70 10 1 0 91 12 0 0 100 Georgia 12 0 0 100 8 8 0 50 49 9 3 80
Hawaii Hawaii 2 3 0 40 15 1 0 94 17 4 0 81
Idaho 0 3 0 0 0 10 2 0 Idaho 6 6 0 50 2 14 0 13 8 33 2 19
Illinois 3 0 100 10 0 0 100 2 10 1 15 2 10 0 17 Illinois 7 5 0 58 11 5 0 69 32 30 1 51
Indiana 4 0 100 6 3 0 67 8 5 0 62 4 8 0 33 Indiana 6 6 0 50 6 10 0 38 30 29 3 48
Iowa 3 0 1 75 0 13 0 0 0 12 0 0 Iowa 4 8 0 33 8 8 0 50 15 41 1 26
Kansas 0 12 1 0 1 10 1 8 Kansas 1 11 0 8 0 16 0 0 2 49 2 4
Kentucky 9 1 90 1 9 0 10 13 0 0 100 8 4 0 67 Kentucky 8 4 0 67 6 10 0 38 36 28 9 49
Louisiana 5 0 100 7 3 0 70 8 4 0 67 12 0 0 100 Louisiana 12 0 0 100 13 3 0 81 52 7 3 84
Maine 3 0 100 6 3 0 66 1 13 0 7 1 11 0 8 Maine 2 10 0 17 5 10 1 31 15 44 4 24
Maryland 6 4 60 0 9 0 0 11 0 2 85 7 5 0 58 Maryland 8 4 0 67 12 4 0 75 38 13 11 61
Massachusetts 1 9 10 0 8 1 0 0 14 0 0 3 9 0 25 Massachusetts 5 7 0 42 15 1 0 94 23 31 9 37
Michigan 6 1 0 86 0 14 0 0 1 11 0 8 Michigan 5 7 0 42 14 2 0 88 26 34 1 43
Minnesota 1 13 0 7 0 10 2 0 Minnesota 6 4 2 50 10 6 0 63 17 33 4 31
Mississippi 4 0 100 7 2 0 78 9 3 0 75 12 0 0 100 Mississippi 12 0 0 100 4 12 0 25 44 15 2 72
Missouri 2 0 100 8 1 0 89 10 2 1 77 9 3 0 75 Missouri 10 2 0 83 6 10 0 38 43 17 2 69
Montana 0 4 0 0 10 2 0 83 Montana 11 1 0 92 12 4 0 75 33 11 0 75
Nebraska 0 11 1 0 2 10 0 17 Nebraska 1 10 1 8 10 6 0 63 13 37 2 25
Nevada 1 10 1 8 6 4 2 50 Nevada 10 2 0 83 10 6 0 63 27 22 3 52
New Hampshire 7 3 70 7 1 2 70 0 13 0 0 1 11 0 8 New Hampshire 2 10 0 17 4 12 0 25 14 47 2 22
New Jersey 8 2 80 3 6 0 33 10 4 0 71 3 9 0 25 New Jersey 4 8 0 33 15 1 0 94 35 22 6 56
New Mexico 4 4 0 50 New Mexico 11 1 0 92 9 7 0 56 24 12 0 67
New York 6 4 60 5 3 1 63 3 10 0 23 4 8 0 33 New York 7 5 0 58 10 5 1 63 29 29 4 47
North Carolina 10 0 100 7 3 0 70 10 2 1 77 11 1 0 92 North Carolina 12 0 0 100 5 11 0 31 45 14 4 71
North Dakota 1 3 0 25 0 12 0 0 North Dakota 2 10 0 17 12 4 0 75 15 29 0 34
Ohio 8 0 100 5 3 1 56 5 8 0 38 2 10 0 17 Ohio 6 6 0 50 9 7 0 56 27 31 4 44
Oklahoma 8 2 0 80 Oklahoma 11 1 0 92 3 13 0 19 22 16 0 58
Oregon 5 9 0 31 3 9 0 25 Oregon 4 8 0 33 5 11 0 31 17 37 0 31
Pennsylvania 8 2 80 8 1 0 89 2 11 0 15 0 12 0 0 Pennsylvania 5 7 0 42 2 14 0 13 17 44 1 27
Rhode Island 5 5 50 2 7 0 22 0 14 0 0 2 10 0 17 Rhode Island 12 0 0 100 11 5 0 69 27 29 7 43
South Carolina 9 1 90 7 1 2 70 8 4 0 66 12 0 0 100 South Carolina 11 1 0 92 6 10 0 38 44 15 3 71
South Dakota 0 3 1 0 2 9 1 17 South Dakota 2 10 0 17 9 7 0 56 13 29 2 30
Tennessee 11 0 100 4 5 0 44 12 2 0 86 12 0 0 100 Tennessee 11 1 0 92 5 11 0 31 44 14 5 70
Texas 4 0 0 100 10 2 0 83 12 0 0 100 Texas 11 1 0 92 4 12 0 25 39 15 0 72
Utah 4 9 0 31 Utah 7 5 0 58 1 15 0 6 12 29 0 29
Vermont 6 4 60 0 9 0 0 0 13 0 0 0 12 0 0 Vermont 0 12 0 0 7 7 2 44 7 44 11 11
Virginia 10 0 100 5 4 0 56 9 1 3 69 12 0 0 100 Virginia 12 0 0 100 6 8 2 38 44 9 9 71
Washington 0 4 0 0 2 10 0 17 Washington 11 1 0 92 13 3 0 81 26 18 0 59
West Virginia 8 3 2 62 3 9 0 25 West Virginia 11 1 0 92 15 1 0 94 37 14 2 70
Wisconsin 3 0 1 75 2 11 0 15 1 11 0 8 Wisconsin 4 7 1 33 13 3 0 81 23 33 1 40
Wyoming 0 4 0 0 3 9 0 25 Wyoming 8 4 0 67 1 15 0 6 12 32 0 27
Northeast 46 37 55 34 43 5 41 17 103 1 14 14 94 0 13 Northeast 45 63 0 42 82 56 4 58 191 319 51 34
South 76 17 82 72 48 2 59 147 33 6 79 160 30 0 84 South 171 21 0 89 129 123 2 51 679 217 58 71
Midwest 17 0 100 41 8 3 79 29 94 5 23 22 116 4 15 Midwest 58 84 4 40 108 85 0 56 258 380 23 39
West 3 0 0 100 12 47 3 19 47 74 4 38 West 95 48 0 66 94 114 0 45 251 283 7 46
United States 139 54 72 150 95 10 59 205 277 15 41 143 314 8 31 United States 369 216 4 63 412 378 7 52 1378 1199 140 51
State DR votes F votes % DR D votes NR/W votes Other votes % D D votes R votes Other votes % D D votes R votes Other votes % D State D votes R votes Other votes % D D votes R votes Other votes % D D votes R votes Other votes % D
First Party System Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System Overall since 1828

States across party systems

S indicates that a state was split between the two major parties and did not elect either party more than 60 percent of the time. A * sign indicates that a state elected that party at least 80 percent of the time. No * sign indicates that the state elected that party between 60 and 80 percent of the time.

Party systems
State 1789-1792 1st 1824-1826 2nd 3rd 4th 5th 6th 2000-2014[9]
Alabama — DR* J D* D D* D* S R*
Alaska — — — — — — D* R* R*
Arizona — — — — — D* D R* R*
Arkansas — — — D* D D* D* D* D
California — — — — S R* R D* D*
Colorado — — — — R* S S S D
Connecticut PA* F* A W R* R* D D* D*
Delaware PA F* J W* D* R R D D*
Florida — — — D* D D* D* D D
Georgia AA* DR* J D D* D* D* S R*
Hawaii — — — — — — R D* D*
Idaho — — — — R* R* S R* R*
Illinois — DR* J D* R R* S D D*
Indiana — DR* A D D R S R R
Iowa — — — D R* R* R S R
Kansas — — — — R* R* R* R* R*
Kentucky AA* DR* J W* D* D D R R*
Louisiana — DR* A D D D* D* D* R
Maine — DR* J D R* R* R* R R*
Maryland PA* DR J W* D* S D D D*
Massachusetts PA* F* A W* R* R S D* D*
Michigan — — — D* R* R* S D* D*
Minnesota — — — — R* R* S D D*
Mississippi — DR* J D D D* D* R R*
Missouri — DR* S D* D D D* R R
Montana — — — — R* D* D* D D
Nebraska — — — — R* R* R* D S
Nevada — — — — R* S D* D R
New Hampshire AA DR J D R* R* R* R R
New Jersey S DR* A W D R R D* D*
New Mexico — — — — — S D* S D*
New York AA DR J D R R S D D*
North Carolina PA DR* J D D D* D* R R*
North Dakota — — — — R R* R* D D*
Ohio — DR* A S R R* S S R
Oklahoma — — — — — D* D* R* R*
Oregon — — — — R R R R D*
Pennsylvania AA DR* S D* R* R* S R* R
Rhode Island PA S A W R* R* D* D D*
South Carolina PA DR* J D D D* D* R R*
South Dakota — — — — R R* R* S R
Tennessee — DR* J S D* D* D* R R*
Texas — — — D* D* D* D* R R*
Utah — — — — — R S R* R*
Vermont AA* DR A W* R* R* R* S S
Virginia AA* DR* J S D D* D* S D
Washington — — — — R* R* D* D* D*
West Virginia — — — — D R D* D* D*
Wisconsin — — — D R* R* S D* D*
Wyoming — — — — R* R D R* R*
State 1789-1792 1st 1824-1826 2nd 3rd 4th 5th 6th 2000-
2014
Region 1789-1792 1st 1824-1826 2nd 3rd 4th 5th 6th 2000-2014[9]
Northeast PA S A S R* R* S S D
South S DR* J* S D D* D* S R
Midwest — DR* A D R R* S S S
West — — — D* R S D S S
United States S DR S S S R D S S

See also

References

  • Martis, Kenneth C. The Historical Atlas of Political Parties in the United States Congress.

Notes

  1. ↑ Also refers to members of the anti-Jacksonian Party after the 1826 elections but before the 1834 elections.
  2. ↑ Includes members of the Unconditional Union Party and other candidates elected under the "unionist" label.
  3. ↑ Candidates from two different parties were elected. This occasionally occurred when a state delegation was first admitted or re-admitted to the Senate. Unless otherwise noted, the split was between the Republican and Democratic parties.
  4. 1 2 3 4 5 There is no consensus definition for the beginning or ending date of the Sixth Party System.
  5. 1 2 Two Democrats were elected in 1858, but a Republican replaced one of the Democrats in an 1859 election.
  6. 1 2 Two Republicans were elected in 1896, but a Democrat replaced a Republican in an 1897 election.
  7. 1 2 Elected by the Restored Government of Virginia.
  8. 1 2 The Virginia legislature elected two Unionists in 1865, but the Senate refused to seat either candidate.
  9. 1 2 Note that these elections are also part of the Sixth Party System.
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