City in Pottawattamie County, Iowa · 2.2 sq mi · 323 people per sq mi
711 people live in Walnut. The typical household earns $62,500, and the median resident is 67.3 years old.
2026 projection
From 747 in 2020
Poverty rate 12.45%
Men 62.8 · Women 71.4
2010–2026
711
2026 projection
4.8% 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.
2010–2026
711
2026 projection
4.8% 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 | 711 | -4 | 0.56% |
|---|---|---|---|
| 2025 | 715 | -12 | 1.65% |
| 2024 | 727 | -2 | 0.27% |
| 2023 | 729 | -3 | 0.41% |
| 2022 | 732 | -4 | 0.54% |
| 2021 | 736 | -11 | 1.47% |
| 2020 | 747 | +2 | 0.27% |
| 2019 | 745 | -8 | 1.06% |
| 2018 | 753 | -6 | 0.79% |
| 2017 | 759 | -5 | 0.65% |
Showing 10 of 17 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.
Walnut has a population change lower than Pottawattamie 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 13 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 8 residents
33% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 33% | 40% | 28% |
| Never married | 22% | 32% | 15% |
| Divorced | 20% | 20% | 21% |
| Widowed | 25% | 9% | 36% |
| Separated | <1% | 0% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources