O'Fallon Township, St. Clair County, Illinois

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O'Fallon Township
Township
Map highlighting O'Fallon Township, St. Clair County, Illinois.svg
Location in St. Clair County
Map of Illinois highlighting St. Clair County.svg
St. Clair County's location in Illinois
Country Flag of the United States.svg  United States
State Flag of Illinois.svg  Illinois
County Flag of St. Clair County, Illinois.svg St. Clair
EstablishedNovember 6, 1883
Area
 • Total35.78 sq mi (92.7 km2)
 • Land35.12 sq mi (91.0 km2)
 • Water0.66 sq mi (1.7 km2)  1.84%
Population
 (2010)
 • Total26,467
 • Estimate 
(2018) [1]
29,484
 • Density741.9/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]

Contents

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.Note%±
2016 (est.)26,281 [1]
U.S. Decennial Census [3]

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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. Archived from the original on February 12, 2020. Retrieved May 28, 2013.
  3. ↑ "Census of Population and Housing". Census.gov. Retrieved June 4, 2016.

38°36′49″N89°51′53″W / 38.61361°N 89.86472°W / 38.61361; -89.86472


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