Illiopolis, Illinois

Illiopolis
The ruins of the Sangamon Ordnance Plant, closed following World War II, lie west of Illiopolis.
Location of Illiopolis in Sangamon County, Illinois.
Coordinates: 39°51′04″N 89°14′56″W / 39.85111°N 89.24889°W / 39.85111; -89.24889
CountryUnited States
StateIllinois
CountySangamon
Area
 • Total
0.68 sq mi (1.75 km2)
 • Land0.68 sq mi (1.75 km2)
 • Water0 sq mi (0.00 km2)
Elevation
594 ft (181 m)
Population
 (2020)
 • Total
846
 • Density1,249.4/sq mi (482.39/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
62539
Area code217
FIPS code17-37127
GNIS feature ID2398568
Websitehttp://illiopolis.illinois.gov/

Illiopolis is a village in Sangamon County, Illinois, United States. As of the 2020 census, Illiopolis had a population of 846. It is part of the Springfield, Illinois Metropolitan Statistical Area.