Village in Sangamon County, Illinois · 0.7 sq mi · 1,224 people per sq mi
About 830 people live in Illiopolis. The typical household earns $63,125, and the median resident is 43.3 years old.
2026 projection
From 845 in 2020
Poverty rate 5.98%
Men 40.1 · Women 45.9
2010–2026
829
2026 projection
1.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2010–2026
829
2026 projection
1.9% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 829 | -3 | 0.36% |
|---|---|---|---|
| 2025 | 832 | -2 | 0.24% |
| 2024 | 834 | -2 | 0.24% |
| 2023 | 836 | -4 | 0.48% |
| 2022 | 840 | +2 | 0.24% |
| 2021 | 838 | -7 | 0.83% |
| 2020 | 845 | +1 | 0.12% |
| 2019 | 844 | -9 | 1.06% |
| 2018 | 853 | -10 | 1.16% |
| 2017 | 863 | -8 | 0.92% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 9 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 17 residents
60% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 60% | 58% | 62% |
| Never married | 24% | 29% | 17% |
| Divorced | 8% | 7% | 10% |
| Widowed | 6% | 6% | 7% |
| Separated | 3% | 1% | 4% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau