List of counties in Ohio

The U.S. state of Ohio comprises 88 counties. Nine of them existed at the time of the Ohio Constitutional Convention in 1802.[1] A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan.[2] During the Convention, the county was opposed to statehood, and was not only left out of the Convention, but dissolved; the current Wayne County is in northeastern Ohio, considerably distant from the area that was the original Wayne County.[1]

Counties of Ohio

The Ohio Constitution allows counties to set up a charter government as many cities and villages do,[3] but only Summit and Cuyahoga counties have done so,[4] the latter having been approved by voters in November 2009.[5] Counties do not possess home rule powers and can do only what has been expressly authorized by the Ohio General Assembly. Ohio law defines a structure for county government, although each county may choose to define its own. Summit County and Cuyahoga County have chosen an alternate structure, while all of the other counties use the default structure. The elected county officials include three commissioners, a sheriff (the highest law enforcement officer in the county); prosecutor (equivalent of a district attorney in other states); coroner, engineer, auditor, treasurer and clerk of courts.[6][7]

Population figures are based on the 2010 United States Census. The population of Ohio was 11,536,504 at that time, an increase of 1.6% from 2000. The average population of Ohio's counties was 131,096; Cuyahoga County was the most populous (1,280,122) and Vinton County was the least (13,435). The average land area is 464 sq mi (1,200 km2). The largest county by area is Ashtabula County at 702.44 sq mi (1,819.3 km2), and its neighbor, Lake County, is the smallest at 228.21 sq mi (591.1 km2). The total area of the state is 40,860.69 sq mi (105,828.7 km2).[8][9]

The Federal Information Processing Standard (FIPS) is used by the U.S. government to uniquely identify counties, and is provided for each entry. These codes link to the United States Census Bureau's "quick facts" for each county. Ohio's FIPS code of 39 is used to distinguish from counties in other states. For example, Adams County's unique nationwide identifier is 39001.[10] However, the Bureau of Motor Vehicles and Department of Transportation instead identify counties by consecutive numbers and three-letter abbreviations,[11] respectively.

List of counties
County
 FIPS code[10] County Seat[12] Est.[13] Origin[14] Etymology[13][14] Population[10][12] Area[12] Map
Adams County 001 West UnionJul 10, 1797Hamilton CountyJohn Adams (1735–1826), President of the United States when the county was organized 28,550 583.91 sq mi
(1,512 km2)
Allen County 003 LimaMar 1, 1820Shelby CountyJohn Allen (1771/2-1813), a War of 1812 colonel[15] 106,331 404.43 sq mi
(1,047 km2)
Ashland County 005 AshlandFeb 24, 1846Wayne, Richland, Huron, and Lorain CountiesAshland, home of U.S. Senator from Kentucky Henry Clay. 53,139 424.37 sq mi
(1,099 km2)
Ashtabula County 007 JeffersonJun 7, 1807Trumbull and Geauga CountiesAshtabula River, which means "fish river" in an Algonquian language[16] 101,497 702.44 sq mi
(1,819 km2)
Athens County 009 AthensMar 1, 1805Washington CountyAthens in Greece 64,757 506.76 sq mi
(1,313 km2)
Auglaize County 011 WapakonetaFeb 14, 1848Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert CountiesAuglaize River, which means "fallen timbers river" in the Shawnee Indian language 45,949 401.25 sq mi
(1,039 km2)
Belmont County 013 St. ClairsvilleSep 7, 1801Jefferson and Washington CountiesBelle monte, which means "beautiful mountain" in French 70,400 537.35 sq mi
(1,392 km2)
Brown County 015 GeorgetownMar 1, 1818Adams and Clermont CountiesGeneral Jacob Brown (1775–1828), an officer of the War of 1812 44,846 491.76 sq mi
(1,274 km2)
Butler County 017 HamiltonMay 1, 1803Hamilton CountyGeneral Richard Butler (1743–1791), killed at the Battle of the Wabash 368,130 467.27 sq mi
(1,210 km2)
Carroll County 019 CarrolltonJan 1, 1833Columbiana, Stark, Harrison, Jefferson, and Tuscarawas CountiesCharles Carroll (1737–1832), last surviving signer of the United States Declaration of Independence 28,836 394.67 sq mi
(1,022 km2)
Champaign County 021 UrbanaMar 1, 1805Greene and Franklin CountiesFrench for "a plain", describing the land in the area 40,097 428.56 sq mi
(1,110 km2)
Clark County 023 SpringfieldMar 1, 1818Champaign, Madison, and Greene CountiesGeneral George Rogers Clark (1752–1818), defeated the Shawnee Indians in a battle near the Springfield area 138,333 399.86 sq mi
(1,036 km2)
Clermont County 025 BataviaDec 6, 1800Hamilton CountyFrench for "clear mountain" 197,363 451.99 sq mi
(1,171 km2)
Clinton County 027 WilmingtonMar 1, 1810Highland and Warren CountiesGeorge Clinton (1739–1812), vice-president when the county was organized 42,040 410.88 sq mi
(1,064 km2)
Columbiana County 029 LisbonMay 1, 1803Jefferson and Washington CountiesChristopher Columbus, European explorer of the Americas 107,841 532.46 sq mi
(1,379 km2)
Coshocton County 031 CoshoctonJan 31, 1810Muskingum and Tuscarawas CountiesDelaware Indian word meaning "union of waters" 36,901 564.07 sq mi
(1,461 km2)
Crawford County 033 BucyrusApr 1, 1820Delaware CountyColonel William Crawford (1732–1782), Revolutionary War officer 43,784 402.11 sq mi
(1,041 km2)
Cuyahoga County 035 ClevelandJun 7, 1807Geauga CountyCuyahoga River, which means "crooked river" in an Iroquoian language[17] 1,249,352 458.49 sq mi
(1,187 km2)
Darke County 037 GreenvilleJan 3, 1809Miami CountyGeneral William Darke (1736–1801), Revolutionary War officer 52,959 599.80 sq mi
(1,553 km2)
Defiance County 039 DefianceApr 7, 1845Williams, Henry, and Paulding CountiesFort Defiance, built in 1794 by General Anthony Wayne 39,037 411.16 sq mi
(1,065 km2)
Delaware County 041 DelawareApr 1, 1808Franklin CountyDelaware Indians 174,214 442.41 sq mi
(1,146 km2)
Erie County 043 SanduskyMar 15, 1838Huron and Sandusky CountiesErie Indians 77,079 254.88 sq mi
(660 km2)
Fairfield County 045 LancasterDec 9, 1800Ross and Washington CountiesNamed for the beauty of its "fair fields" 146,156 505.11 sq mi
(1,308 km2)
Fayette County 047 Washington Court HouseMar 1, 1810Ross and Highland CountiesGilbert du Motier, marquis de La Fayette, French military officer and aristocrat who participated in both the American and French revolutions. 29,030 406.58 sq mi
(1,053 km2)
Franklin County 049 ColumbusApr 30, 1803Ross and Wayne CountiesBenjamin Franklin (1706–1791), Founding Father, author, printer, political theorist, scientist, inventor, and statesman 1,264,518 539.87 sq mi
(1,398 km2)
Fulton County 051 WauseonApr 1, 1850Lucas, Henry, and Williams CountiesRobert Fulton (1765–1815), inventor of the steamboat 42,698 406.78 sq mi
(1,054 km2)
Gallia County 053 GallipolisApr 30, 1803Washington and Adams CountiesGaul, the ancient name of France 30,934 468.78 sq mi
(1,214 km2)
Geauga County 055 ChardonMar 1, 1806Trumbull CountyAn Indian word meaning "raccoon" 93,389 403.66 sq mi
(1,045 km2)
Greene County 057 XeniaMay 1, 1803Hamilton and Ross CountiesGeneral Nathanael Greene (1742–1786), Revolutionary War officer 161,573 414.88 sq mi
(1,075 km2)
Guernsey County 059 CambridgeMar 1, 1810Belmont and Muskingum CountiesIsland of Guernsey, from where most of the settlers originated 40,087 521.90 sq mi
(1,352 km2)
Hamilton County 061 CincinnatiJan 2, 1790One of the original countiesAlexander Hamilton (1755/7-1804), Secretary of the Treasury when the county was organized 802,374 407.36 sq mi
(1,055 km2)
Hancock County 063 FindlayApr 1, 1820Logan CountyJohn Hancock (1737–1793), president of the Continental Congress 74,782 531.35 sq mi
(1,376 km2)
Hardin County 065 KentonApr 1, 1820Logan CountyGeneral John Hardin (1753–1792), Revolutionary War officer 32,058 470.29 sq mi
(1,218 km2)
Harrison County 067 CadizFeb 1, 1813Jefferson and Tuscarawas CountiesGeneral William Henry Harrison (1773–1841), an officer of the War of 1812 and future President of the United States 15,864 403.53 sq mi
(1,045 km2)
Henry County 069 NapoleonApr 1, 1820Shelby CountyPatrick Henry (1736–1799), Revolutionary War-era legislator, orator, and scholar 28,215 416.50 sq mi
(1,079 km2)
Highland County 071 HillsboroMay 1, 1805Ross, Adams, and Clermont CountiesDescriptive of the county's terrain 43,589 553.28 sq mi
(1,433 km2)
Hocking County 073 LoganMar 1, 1818Athens, Ross, and Fairfield CountiesPossibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle" 29,380 422.75 sq mi
(1,095 km2)
Holmes County 075 MillersburgJan 20, 1824Coshocton, Wayne, and Tuscarawas CountiesMajor Andrew Holmes (died 1814), a War of 1812 officer 42,366 422.99 sq mi
(1,096 km2)
Huron County 077 NorwalkMar 7, 1809Portage and Cuyahoga CountiesHuron Indians 59,626 492.69 sq mi
(1,276 km2)
Jackson County 079 JacksonMar 1, 1816Scioto, Gallia, Athens, and Ross CountiesGeneral Andrew Jackson (1767–1845), future President of the United States 33,225 420.28 sq mi
(1,089 km2)
Jefferson County 081 SteubenvilleJul 29, 1797Washington CountyThomas Jefferson (1743–1826), Vice President when the county was organized, future President of the United States, and principal author of the Declaration of Independence 69,709 409.61 sq mi
(1,061 km2)
Knox County 083 Mount VernonMar 1, 1808Fairfield CountyGeneral Henry Knox, the first Secretary of War 60,921 527.12 sq mi
(1,365 km2)
Lake County 085 PainesvilleMar 6, 1840Geauga and Cuyahoga CountiesIts location on Lake Erie 230,041 228.21 sq mi
(591 km2)
Lawrence County 087 IrontonDec 21, 1815Gallia and Scioto CountiesCaptain James Lawrence (1781–1813), naval hero in the War of 1812 62,450 454.96 sq mi
(1,178 km2)
Licking County 089 NewarkMar 1, 1808Fairfield CountyNamed for the salt licks in the area 166,492 686.50 sq mi
(1,778 km2)
Logan County 091 BellefontaineMar 1, 1818Champaign CountyGeneral Benjamin Logan (c. 1742 – 1802), who destroyed Shawnee Indian towns in the county 45,858 458.44 sq mi
(1,187 km2)
Lorain County 093 ElyriaDec 26, 1822Huron, Cuyahoga, and Medina CountiesProvince of Lorraine, France 301,356 492.50 sq mi
(1,276 km2)
Lucas County 095 ToledoJun 20, 1835Wood, Sandusky, and Huron CountiesRobert Lucas (1781–1853), Governor of Ohio when the county was created 441,815 340.46 sq mi
(882 km2)
Madison County 097 LondonMar 1, 1810Franklin CountyJames Madison (1751–1836), fourth President of the United States 43,435 465.44 sq mi
(1,205 km2)
Mahoning County 099 YoungstownMar 1, 1846Columbiana and Trumbull CountiesMahoning River, from a Lenape word meaning "at the licks" 238,823 415.25 sq mi
(1,075 km2)
Marion County 101 MarionApr 1, 1820Delaware CountyGeneral Francis Marion (1732–1795), lieutenant colonel in the Continental Army and later brigadier general in the American Revolutionary War. 66,501 403.84 sq mi
(1,046 km2)
Medina County 103 MedinaFeb 18, 1812Portage CountyMedina, world-renowned religious site in western Saudi Arabia 176,395 423 sq mi
(1,096 km2)
Meigs County 105 PomeroyApr 1, 1819Gallia and Athens CountiesReturn Jonathan Meigs, Jr. (1764–1825), Governor of Ohio and Postmaster General at the time the county was organized 23,770 429.42 sq mi
(1,112 km2)
Mercer County 107 CelinaApr 1, 1820Darke CountyGeneral Hugh Mercer (1726–1777), a Revolutionary War officer 40,814 463.27 sq mi
(1,200 km2)
Miami County 109 TroyMar 1, 1807Montgomery CountyMiami Indians 102,506 407.04 sq mi
(1,054 km2)
Monroe County 111 WoodsfieldJan 29, 1813Belmont, Washington, and Guernsey CountiesJames Monroe (1758–1831), Secretary of State when the county was organized and future President of the United States 14,642 455.54 sq mi
(1,180 km2)
Montgomery County 113 DaytonMay 1, 1803Hamilton and Wayne CountiesGeneral Richard Montgomery (1738–1775), a Revolutionary War officer 535,153 461.68 sq mi
(1,196 km2)
Morgan County 115 McConnelsvilleDec 29, 1817Washington, Guernsey, and Muskingum CountiesGeneral Daniel Morgan (c. 1735 – 1802), a Revolutionary War officer 15,054 417.66 sq mi
(1,082 km2)
Morrow County 117 Mount GileadMar 1, 1848Knox, Marion, Delaware, and Richland CountiesJeremiah Morrow (1771–1852), Governor of Ohio 34,827 406.22 sq mi
(1,052 km2)
Muskingum County 119 ZanesvilleMar 1, 1804[18][19]Washington and Fairfield CountiesAn Indian word meaning "A town by the river" or "by the river side" 86,074 664.63 sq mi
(1,721 km2)
Noble County 121 CaldwellApr 1, 1851Monroe, Washington, Morgan, and Guernsey CountiesJames Noble (1785–1831), an early settler and future U.S. Senator from Indiana 14,645 399.00 sq mi
(1,033 km2)
Ottawa County 123 Port ClintonMar 6, 1840Erie, Sandusky, and Lucas CountiesNamed for the Ottawa Indians; Ottawa means "trader" in their language 41,428 254.95 sq mi
(660 km2)
Paulding County 125 PauldingApr 1, 1820Darke CountyJohn Paulding (1758–1818), captor of spy John André during the Revolutionary War 19,614 416.26 sq mi
(1,078 km2)
Perry County 127 New LexingtonMar 1, 1818Washington, Fairfield, and Muskingum CountiesCommodore Oliver Hazard Perry (1785–1819), a naval officer of the War of 1812 36,058 409.78 sq mi
(1,061 km2)
Pickaway County 129 CirclevilleMar 1, 1810Ross, Fairfield, and Franklin CountiesA misspelling of the Piqua tribe, a branch of the Shawnee 55,698 501.91 sq mi
(1,300 km2)
Pike County 131 WaverlyFeb 1, 1815Ross, Scioto, and Adams CountiesGeneral Zebulon M. Pike (1779–1813), a War of 1812 officer and discoverer of Pikes Peak in Colorado in 1806 28,709 441.49 sq mi
(1,143 km2)
Portage County 133 RavennaJun 7, 1807Trumbull CountyDerived from an Indian portage 161,419 492.39 sq mi
(1,275 km2)
Preble County 135 EatonMar 1, 1808Montgomery and Butler CountiesCaptain Edward Preble (1761–1807), a Naval commander in the Revolutionary War 42,270 424.80 sq mi
(1,100 km2)
Putnam County 137 OttawaApr 1, 1820Shelby CountyGeneral Israel Putnam (1718–1790), a Revolutionary War officer 34,499 483.87 sq mi
(1,253 km2)
Richland County 139 MansfieldMar 1, 1808Fairfield CountyDescriptive of the soil in the area 124,475 496.88 sq mi
(1,287 km2)
Ross County 141 ChillicotheAug 20, 1798Adams and Washington CountiesNamed for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair 78,064 688.41 sq mi
(1,783 km2)
Sandusky County 143 FremontApr 1, 1820Huron CountyAn Iroquois word meaning "cold water" 60,944 409.18 sq mi
(1,060 km2)
Scioto County 145 PortsmouthMay 1, 1803Adams CountyScioto River; Scioto is a Wyandot Indian word meaning "deer" 79,499 612.27 sq mi
(1,586 km2)
Seneca County 147 TiffinApr 1, 1820Huron CountySeneca Indians, who had a reservation in the county area at the time 56,745 550.59 sq mi
(1,426 km2)
Shelby County 149 SidneyApr 1, 1819Miami CountyGeneral Isaac Shelby (1750–1826), a Revolutionary War officer and Governor of Kentucky, 49,423 409.27 sq mi
(1,060 km2)
Stark County 151 CantonFeb 13, 1808Columbiana CountyGeneral John Stark (1728–1822), a Revolutionary War officer; known as the "Hero of Bennington" for his exemplary service at the Battle of Bennington in 1777 375,586 576.14 sq mi
(1,492 km2)
Summit County 153 AkronMar 3, 1840Medina, Portage, and Stark CountiesIts location at the highest elevation along the Ohio and Erie Canal 541,781 419.38 sq mi
(1,086 km2)
Trumbull County 155 WarrenJul 10, 1800Jefferson and Wayne CountiesJonathan Trumbull (1710–1785), Governor of Connecticut when the county was organized 210,312 616.48 sq mi
(1,597 km2)
Tuscarawas County 157 New PhiladelphiaMar 15, 1808Muskingum CountyTuscarawas River, meaning "open mouth river"
or
the Tuscarawas tribe who lived on the river		 92,582 567.58 sq mi
(1,470 km2)
Union County 159 MarysvilleApr 1, 1820Delaware, Franklin, Logan, and Madison CountiesIts formation by a union of four counties 52,300 436.65 sq mi
(1,131 km2)
Van Wert County 161 Van WertApr 1, 1820Darke CountyIsaac Van Wart (1760–1828), captor of spy John André during the Revolutionary War 28,744 410.09 sq mi
(1,062 km2)
Vinton County 163 McArthurMar 23, 1850Athens, Gallia, Hocking, Jackson, and Ross CountiesSamuel Finley Vinton (1792–1862), Ohio Statesman and U.S. Congressman 13,435 414.08 sq mi
(1,072 km2)
Warren County 165 LebanonMay 1, 1803Hamilton CountyGeneral Joseph Warren (1741–1775), a Revolutionary War officer 212,693 399.63 sq mi
(1,035 km2)
Washington County 167 MariettaJul 27, 1788One of the original countiesGeorge Washington (1732–1799), commander of the Continental Army, president of the Constitutional Convention, and future President of the United States 61,778 635.15 sq mi
(1,645 km2)
Wayne County 169 WoosterMar 1, 1808From non-county areaGeneral Anthony Wayne (1745–1796), a Revolutionary War officer 114,520 555.36 sq mi
(1,438 km2)
Williams County 171 BryanApr 1, 1820Darke CountyDavid Williams (1754–1831), captor of spy John André during the Revolutionary War 37,642 421.74 sq mi
(1,092 km2)
Wood County 173 Bowling GreenApr 1, 1820Refactored from non-county territoryEleazer D. Wood (1783–1814), founder of Fort Meigs 125,488 617.32 sq mi
(1,599 km2)
Wyandot County 175 Upper SanduskyFeb 3, 1845Marion, Crawford, and Hardin CountiesWyandot Indians 22,615 405.61 sq mi
(1,051 km2)

See also
  • Ohio county government
  • List of Ohio townships

References
  1. Laning, J.F. (1896). "The Evolution of Ohio Counties". Ohio Archaeological and Historical Publications. V: 326–350. Archived from the original on 2015-11-21.. Other editions available at ISBN 1249686741 and Google Books
  2. Lawyer, James Patterson (1905). History of Ohio: From the Glacial Period to the Present Time. Press of F. J. Heer. p. 381. Retrieved 2007-08-18.. Other editions available at ISBN 9781279183281
  3. Steinglass, Steven; Scarselli, Gino (2004). The Ohio State Constitution A Reference Guide. Westport, CT: Praeger Publishers. pp. 272–273. (OH county charter). Other editions available: ISBN 0313267650 and Google Books
  4. "County of Summit". Retrieved 2013-02-28.
  5. "Issue 6 reform wins big and sets in motion even bigger changes for Cuyahoga County". cleveland.com. Retrieved 2010-01-28.
  6. "OSBA - OSBA Staff Directory". www.ohiobar.org.
  7. http://codes.ohio.gov/orc/3. Missing or empty |title= (help)
  8. "Ohio QuickFacts". U.S. Census Bureau. Archived from the original on 2013-03-03. Retrieved 2013-02-27.
  9. "Population Estimates". U.S. Census Bureau. December 2009. Archived from the original on 2009-03-22. Retrieved 2013-02-27.
  10. "County FIPS Code Listing for the State of OHIO". United States Environmental Protection Agency. Retrieved 2016-07-09.
  11. "ODOT County Abbreviation Table" (PDF). Ohio Department of Transportation. May 1, 2013. Retrieved December 21, 2014.
  12. "NACo - Find a County". Archived from the original on 2007-04-13. Retrieved 2007-07-22.
  13. "Federal Roster: Counties of Ohio, Derivation of Name and Date of Erection" (PDF). Archived from the original on 2013-07-12. Retrieved 2013-07-21.CS1 maint: BOT: original-url status unknown (link)
  14. Howe, Henry (1891). Historical Collections of Ohio. 2. Columbus, OH: Henry Howe and Son. (OH county source). Other editions available: ISBN 1425565735 and Google Books
  15. Resolution of 111th Ohio General Assembly designating John Allen as the person for which Allen County was named.
  16. Ashtabula, Encyclopædia Britannica, 2007. Accessed 2007-11-19.
  17. Cuyahoga River, Encyclopædia Britannica, 2007. Accessed 2007-11-19.
  18. Downes, p. 368.
  19. Taylor & Taylor, p. 40.

Further reading
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