Village in Sangamon County, Illinois
Illiopolis
Who lives in Illiopolis
Census survey estimates for 2020 to 2024, rounded.
People
- Population
- 890
- Median age
- 43.3 years
- Under 18
- 24%
- 65 and over
- 19%
- Veterans, of adults
- 8%
- Speak another language at home
- 1%
Race and ethnicity
- Hispanic or Latino, of any race
- 1%
- White, not Hispanic
- 95%
- Black, not Hispanic
- 2%
- Asian, not Hispanic
- 1%
Income and housing
- Median household income
- $63,100
- Below the poverty line
- 6%
- Bachelor's or higher, adults 25+
- 20%
- Owner-occupied homes
- 81%
- Median home value
- $101,000
2024 vote for president
Not counted for Illiopolis on its own: its precincts follow township lines, not the town’s. See the figure for Sangamon County.
Who represents Illiopolis
Illiopolis's districts
U.S. House District 13
All of Illiopolis
Held by Nikki Budzinski, Democratic
- Washington office: (202) 225-2371
About 747,200 people, median household income $63,100.
Largest towns: Springfield (part), Champaign, Decatur (part) and 91 more
Illinois Senate District 44
All of Illiopolis
Held by Sally Turner, Republican
- Springfield office: (217) 782-6216
- District office: (217) 651-8291
About 215,000 people, median household income $86,200.
Largest towns: Bloomington (part), Morton (part), Decatur (part) and 74 more
Illinois House District 87
All of Illiopolis
Held by Bill Hauter, Republican
- Springfield office: (217) 782-0221
- District office: (309) 819-8701
About 107,500 people, median household income $78,900.
Largest towns: Morton (part), Lincoln, East Peoria (part) and 42 more
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, 119th Congressional District and 2024 state legislative district tabulation. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, 119th Congressional District and 2024 state legislative district tabulation. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.