Piatt County, Illinois
Piatt County, Illinois | |
|---|---|
Piatt County Courthouse in Monticello | |
Location within the U.S. state of Illinois | |
| Coordinates: 40°01′N 88°35′W / 40.01°N 88.59°W | |
| Country | United States |
| State | Illinois |
| Founded | 1841 |
| Named after | James A. Piatt |
| Seat | Monticello |
| Largest city | Monticello |
| Area | |
• Total | 439 sq mi (1,140 km2) |
| • Land | 439 sq mi (1,140 km2) |
| • Water | 0.3 sq mi (0.78 km2) 0.06% |
| Population (2020) | |
• Total | 16,673 |
• Estimate (2024) | 16,628 |
| • Density | 38.0/sq mi (14.7/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional districts | 13th, 15th |
| Website | www |
Piatt County is a county in Illinois. According to the 2020 United States census, it had a population of 16,673. Its county seat is Monticello.
Piatt County is part of the Champaign-Urbana Metropolitan Area.