City in Audrain County, Missouri · 2.2 sq mi · 1,293 people per sq mi
2,901 people live in Vandalia. The typical household earns $50,313, and the median resident is 40.2 years old.
2026 projection
From 3,553 in 2020
Poverty rate 13.86%
Men 41.6 · Women 39.6
1880–2026
2,901
2026 projection
18.4% 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.
1880–2026
2,901
2026 projection
18.4% 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 | 2,901 | -128 | 4.23% |
|---|---|---|---|
| 2025 | 3,029 | +129 | 4.45% |
| 2024 | 2,900 | -61 | 2.06% |
| 2023 | 2,961 | -17 | 0.57% |
| 2022 | 2,978 | -446 | 13.03% |
| 2021 | 3,424 | -129 | 3.63% |
| 2020 | 3,553 | -119 | 3.24% |
| 2019 | 3,672 | -399 | 9.80% |
| 2018 | 4,071 | -123 | 2.93% |
| 2017 | 4,194 | -74 | 1.73% |
Showing 10 of 30 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.
Vandalia has a population change lower than Audrain 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 31 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 7 residents
27% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 27% | 32% | 24% |
| Never married | 41% | 46% | 37% |
| Divorced | 21% | 18% | 23% |
| Widowed | 7% | 2% | 9% |
| Separated | 5% | 2% | 7% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources