ZIP Code 62539
About Illiopolis
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.
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Area Profile
US Census (ACS 5-year · Gazetteer)
1,342
population
$88,583
median household income
29
people / sq mi
$108,300
median home value
$675
median gross rent
40.0
median age
561
housing units
535
households
46.4
land area (sq mi)
Points of interest
- grocery