O'Fallon Township, St. Clair County, Illinois

O'Fallon Township
Township

Location in St. Clair County

St. Clair County's location in Illinois
Country United States
State Illinois
County St. Clair
Established November 6, 1883
Area
  Total 35.78 sq mi (92.7 km2)
  Land 35.12 sq mi (91.0 km2)
  Water 0.66 sq mi (1.7 km2)  1.84%
Population (2010)
  Estimate (2016)[1] 26,281
  Density 741.9/sq mi (286.4/km2)
Time zone UTC-6 (CST)
  Summer (DST) UTC-5 (CDT)
FIPS code 17-163-55262

O'Fallon Township is located in St. Clair County, Illinois. As of the 2010 census, its population was 26,053 and it contained 10,338 housing units.[2]

Geography

According to the 2010 census, the township has a total area of 35.78 square miles (92.7 km2), of which 35.12 square miles (91.0 km2) (or 98.16%) is land and 0.66 square miles (1.7 km2) (or 1.84%) is water.[2]

Demographics

Historical population
CensusPop.
Est. 201626,281[1]
U.S. Decennial Census[3]

References

  1. 1 2 "Population and Housing Unit Estimates". Retrieved June 9, 2017.
  2. 1 2 "Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place -- 2010 Census Summary File 1". United States Census. Retrieved 2013-05-28.
  3. "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.

Coordinates: 38°36′49″N 89°51′53″W / 38.61361°N 89.86472°W / 38.61361; -89.86472


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