Monticello, Illinois

City of Monticello
Piatt County Courthouse
Motto(s): 
"Yesterday's Charm, Tomorrow's Innovation"
Location of Monticello in Piatt County, Illinois
Location of Monticello in Piatt County, Illinois
City of Monticello is located in Illinois
City of Monticello
City of Monticello
City of Monticello is located in the United States
City of Monticello
City of Monticello
Coordinates: 40°02′03″N 88°34′22″W / 40.03417°N 88.57278°W / 40.03417; -88.57278[1]
Country United States
State Illinois
CountyPiatt
TownshipsMonticello, Sangamon
Area
 • Total3.89 sq mi (10.08 km2)
 • Land3.85 sq mi (9.98 km2)
 • Water0.04 sq mi (0.10 km2)
Elevation656 ft (200 m)
Population
 (2020)
 • Total5,941
 • Density1,542.32/sq mi (595.50/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
61856
Area code217
FIPS code17-50244
GNIS ID2395384[1]
Websitewww.monticelloillinois.net

Monticello (/ˌmɒntɪˈsɛl/ MON-tiss-EL-oh) is a city and county seat of Piatt County, Illinois, United States. The population was 5,941 at the 2020 census. [3]

  1. ^ a b c U.S. Geological Survey Geographic Names Information System: Monticello, Illinois
  2. ^ "2020 U.S. Gazetteer Files". United States Census Bureau. Retrieved March 15, 2022.
  3. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.