O'Fallon Township | |
---|---|
Township | |
![]() Location in St. Clair County | |
![]() St. Clair County's location in Illinois | |
Country | ![]() |
State | ![]() |
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) | |
• Total | 26,467 |
29,484 | |
• 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]
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]
Census | Pop. | Note | %± |
---|---|---|---|
2016 (est.) | 26,281 | [1] | |
U.S. Decennial Census [3] |
38°36′49″N89°51′53″W / 38.61361°N 89.86472°W