City in Monona County, Iowa · 5.3 sq mi · 531 people per sq mi
About 2,800 people live in Onawa. The typical household earns $62,143, and the median resident is 35.5 years old.
2026 projection
From 2,907 in 2020
Poverty rate 16.25%
Men 34.3 · Women 37.8
1870–2026
2,797
2026 projection
3.8% 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.
1870–2026
2,797
2026 projection
3.8% 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 | 2,797 | -24 | 0.85% |
|---|---|---|---|
| 2025 | 2,821 | +9 | 0.32% |
| 2024 | 2,812 | -22 | 0.78% |
| 2023 | 2,834 | +3 | 0.11% |
| 2022 | 2,831 | -32 | 1.12% |
| 2021 | 2,863 | -44 | 1.51% |
| 2020 | 2,907 | +135 | 4.87% |
| 2019 | 2,772 | -4 | 0.14% |
| 2018 | 2,776 | -30 | 1.07% |
| 2017 | 2,806 | -22 | 0.78% |
Showing 10 of 31 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 28 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 6 residents
47% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 47% | 47% | 46% |
| Never married | 33% | 39% | 27% |
| Divorced | 6% | 8% | 5% |
| Widowed | 13% | 5% | 20% |
| Separated | 2% | <1% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau