Brookside Township, Clinton County, Illinois
Brookside Township | |
|---|---|
Location in Clinton County | |
Clinton County's location in Illinois | |
| Coordinates: 38°32′N 89°12′W / 38.533°N 89.200°W | |
| Country | United States |
| State | Illinois |
| County | Clinton |
| Established | November 4, 1873 |
| Area | |
• Total | 24.33 sq mi (63.0 km2) |
| • Land | 24.33 sq mi (63.0 km2) |
| • Water | 0 sq mi (0 km2) 0% |
| Elevation | 449 ft (137 m) |
| Population (2020) | |
• Total | 4,444 |
| • Density | 180/sq mi (71/km2) |
| Time zone | UTC-6 (CST) |
| • Summer (DST) | UTC-5 (CDT) |
| ZIP codes | 62250, 62801 |
| FIPS code | 17-027-08732 |
Brookside Township is one of fifteen townships in Clinton County, Illinois, United States. As of the 2020 census, its population was 4,444 and it contained 1,570 housing units. The township's name changed from Crooked Creek Township on June 1, 1874.