Piatt County, Illinois

Piatt County
Piatt County Courthouse in Monticello
Map of Illinois highlighting Piatt County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 40°01′N 88°35′W / 40.01°N 88.59°W / 40.01; -88.59
Country United States
State Illinois
Founded1841
Named forJames A. Piatt
SeatMonticello
Largest cityMonticello
Area
 • Total
439 sq mi (1,140 km2)
 • Land439 sq mi (1,140 km2)
 • Water0.3 sq mi (0.8 km2)  0.06%
Population
 (2020)
 • Total
16,673
 • Density38/sq mi (15/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional districts13th, 15th
Websitewww.piattcounty.org

Piatt County is a county in Illinois. According to the 2020 United States Census, it had a population of 16,673.[1] Its county seat is Monticello.[2]

Piatt County is part of the ChampaignUrbana, IL Metropolitan Statistical Area.

  1. ^ "State & County QuickFacts". US Census Bureau. Archived from the original on June 7, 2011. Retrieved July 8, 2014.
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.