City in Sullivan County, Indiana · 1.9 sq mi · 2,248 people per sq mi
About 4,200 people live in Sullivan. The typical household earns $46,551, and the median resident is 33.2 years old.
2026 projection
From 4,256 in 2020
Poverty rate 19.64%
Men 25.2 · Women 36.8
1860–2026
4,215
2026 projection
1% 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
4,215
2026 projection
1% 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 | 4,215 | -14 | 0.33% |
|---|---|---|---|
| 2025 | 4,229 | +28 | 0.67% |
| 2024 | 4,201 | -5 | 0.12% |
| 2023 | 4,206 | -18 | 0.43% |
| 2022 | 4,224 | -21 | 0.49% |
| 2021 | 4,245 | -11 | 0.26% |
| 2020 | 4,256 | +165 | 4.03% |
| 2019 | 4,091 | +6 | 0.15% |
| 2018 | 4,085 | +14 | 0.34% |
| 2017 | 4,071 | -2 | 0.05% |
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 5 residents
50% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 50% | 55% | 46% |
| Never married | 24% | 30% | 19% |
| Divorced | 15% | 12% | 18% |
| Widowed | 11% | 3% | 17% |
| Separated | <1% | 0% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau