City in Harrison County, Iowa · 3.3 sq mi · 783 people per sq mi
2,603 people live in Missouri Valley. The typical household earns $71,818, and the median resident is 38 years old.
2026 projection
From 2,678 in 2020
Poverty rate 9.71%
Men 36.3 · Women 39.3
1880–2026
2,603
2026 projection
2.8% 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
2,603
2026 projection
2.8% 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 | 2,603 | -13 | 0.50% |
|---|---|---|---|
| 2025 | 2,616 | -8 | 0.30% |
| 2024 | 2,624 | -22 | 0.83% |
| 2023 | 2,646 | -15 | 0.56% |
| 2022 | 2,661 | -24 | 0.89% |
| 2021 | 2,685 | +7 | 0.26% |
| 2020 | 2,678 | -23 | 0.85% |
| 2019 | 2,701 | -13 | 0.48% |
| 2018 | 2,714 | +6 | 0.22% |
| 2017 | 2,708 | +6 | 0.22% |
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.
Missouri Valley has a population change lower than Harrison County, Iowa, 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 27 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
47% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 47% | 48% | 46% |
| Never married | 28% | 33% | 23% |
| Divorced | 10% | 11% | 10% |
| Widowed | 11% | 5% | 17% |
| Separated | 4% | 3% | 4% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources