Seneca Township | |
|---|---|
Township | |
| Location in McHenry County | |
| Country | United States |
| State | Illinois |
| County | McHenry |
| Established | November 6, 1849 |
| Area | |
• Total | 35.96 sq mi (93.1 km2) |
| • Land | 35.95 sq mi (93.1 km2) |
| • Water | 0.01 sq mi (0.03 km2) 0.03% |
| Population (2020) | |
• Total | 2,893 |
| • Density | 81.9/sq mi (31.6/km2) |
| Time zone | UTC-6 (CST) |
| • Summer (DST) | UTC-5 (CDT) |
| FIPS code | 17-111-68653 |
| Website | http://www.senecatownship.com/ |
Seneca Township is located in McHenry County, Illinois. As of the 2020 census, its population was 2,893 and it contained 1,102 housing units. It includes the census-designated place of Franklinville.
According to the 2010 census, the township has a total area of 35.96 square miles (93.1 km2), of which 35.95 square miles (93.1 km2) (or 99.97%) is land and 0.01 square miles (0.026 km2) (or 0.03%) is water. [1]
| Census | Pop. | Note | %± |
|---|---|---|---|
| 2010 | 2,944 | — | |
| 2020 | 2,893 | −1.7% | |
| U.S. Decennial Census [2] | |||
42°16′43″N88°31′38″W / 42.27861°N 88.52722°W