Walnut is a city located in Pottawattamie County, Iowa. Walnut has a 2026 population of 720. Walnut is currently declining at a rate of -0.55% annually and its population has decreased by -3.1% since the most recent census, which recorded a population of 743 in 2020.
The median household income in Walnut is $62,500 with a poverty rate of 12.45%. The median age in Walnut is 67.3 years: 62.8 years for males, and 71.4 years for females. For every 100 females there are 69.2 males.
Data after 2023 is projected based on recent change
Overall: 67.3 years
Female: 71.4 years
Male: 62.8 years
There are 1,167 adults, (728 of whom are seniors) in Walnut.
Female: 793 (59.1%)
Male: 549 (40.9%)
The racial composition of Walnut includes 95.53% White, and smaller percentages for Black or African American, Native American, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,282 | 95.53% |
| Two or more races | 41 | 3.06% |
| Black or African American | 9 | 0.67% |
| Native American | 5 | 0.37% |
| Other race | 5 | 0.37% |
Walnut 's average per capita income is $37,850. Household income levels show a median of $62,500. The poverty rate stands at 12.45%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $100,500 | - |
| Families | $85,625 | $106,100 |
| Households | $62,500 | $79,044 |
| Non Families | $31,875 | $39,431 |
Average Income
Median Household Income
Poverty Rate