City in Moultrie County, Illinois · 2.8 sq mi · 1,550 people per sq mi
About 4,300 people live in Sullivan. The typical household earns $63,229, and the median resident is 38.1 years old.
2026 projection
From 4,397 in 2020
Poverty rate 10.32%
Men 36 · Women 39.6
1860–2026
4,290
2026 projection
2.4% 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.
1860–2026
4,290
2026 projection
2.4% 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 | 4,290 | -20 | 0.46% |
|---|---|---|---|
| 2025 | 4,310 | -7 | 0.16% |
| 2024 | 4,317 | +54 | 1.27% |
| 2023 | 4,263 | -18 | 0.42% |
| 2022 | 4,281 | -129 | 2.93% |
| 2021 | 4,410 | +13 | 0.30% |
| 2020 | 4,397 | -24 | 0.54% |
| 2019 | 4,421 | -46 | 1.03% |
| 2018 | 4,467 | +6 | 0.13% |
| 2017 | 4,461 | +43 | 0.97% |
Showing 10 of 32 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 43 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 10 residents
44% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 44% | 45% | 43% |
| Never married | 31% | 41% | 21% |
| Divorced | 15% | 10% | 20% |
| Widowed | 8% | 3% | 13% |
| Separated | 2% | <1% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau