City in Franklin County, Missouri · 8.2 sq mi · 848 people per sq mi
6,951 people live in Sullivan. The typical household earns $63,370, and the median resident is 39.4 years old.
2026 projection
From 6,906 in 2020
Poverty rate 11.45%
Men 34.1 · Women 42.1
1880–2026
6,951
2026 projection
0.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1880–2026
6,951
2026 projection
0.7% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 6,951 | +9 | 0.13% |
|---|---|---|---|
| 2025 | 6,942 | +1 | 0.01% |
| 2024 | 6,941 | +112 | 1.64% |
| 2023 | 6,829 | -17 | 0.25% |
| 2022 | 6,846 | -19 | 0.28% |
| 2021 | 6,865 | -41 | 0.59% |
| 2020 | 6,906 | -8 | 0.12% |
| 2019 | 6,914 | -44 | 0.63% |
| 2018 | 6,958 | -60 | 0.85% |
| 2017 | 7,018 | +45 | 0.65% |
Showing 10 of 29 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Sullivan is growing slower than Franklin County, Missouri, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 63 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 9 residents
38% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 38% | 43% | 35% |
| Never married | 34% | 42% | 27% |
| Divorced | 16% | 13% | 19% |
| Widowed | 11% | 2% | 18% |
| Separated | 1% | <1% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources