City in Marion County, Missouri · 16 sq mi · 1,046 people per sq mi
16,736 people live in Hannibal. The typical household earns $53,721, and the median resident is 38.5 years old.
2026 projection
From 17,108 in 2020
Poverty rate 19.48%
Men 36.3 · Women 40.4
1850–2026
16,736
2026 projection
2.2% since 2020 (decrease)
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.
1850–2026
16,736
2026 projection
2.2% since 2020 (decrease)
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 | 16,736 | -68 | 0.40% |
|---|---|---|---|
| 2025 | 16,804 | +9 | 0.05% |
| 2024 | 16,795 | +2 | 0.01% |
| 2023 | 16,793 | -152 | 0.90% |
| 2022 | 16,945 | -99 | 0.58% |
| 2021 | 17,044 | -64 | 0.37% |
| 2020 | 17,108 | -89 | 0.52% |
| 2019 | 17,197 | -49 | 0.28% |
| 2018 | 17,246 | -73 | 0.42% |
| 2017 | 17,319 | -121 | 0.69% |
Showing 10 of 33 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.
Hannibal has a population change lower than Marion 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 168 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
39% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 39% | 44% | 34% |
| Never married | 37% | 40% | 35% |
| Divorced | 14% | 11% | 17% |
| Widowed | 8% | 3% | 13% |
| Separated | 2% | 2% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources