Warren County's 2026 population is estimated at 58,433, reflecting a 1.82% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Warren County is the 11th largest county in Iowa. The 2010 population was 46,341 and has grown 26.09% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.8 years
Female: 39.7 years
Male: 38.2 years
There are 41,117 adults, (9,112 of whom are seniors) in Warren County.
Female: 27,370 (50.3%)
Male: 27,039 (49.7%)
The racial composition of Warren County includes 92.96% White, and smaller percentages for Asian, Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 50,576 | 92.96% |
| Two or more races | 2,530 | 4.65% |
| Asian | 407 | 0.75% |
| Black or African American | 405 | 0.74% |
| Other race | 329 | 0.6% |
| Native American | 154 | 0.28% |
| Native Hawaiian or Pacific Islander | 8 | 0.01% |
Warren County 's average per capita income is $60,221. Household income levels show a median of $94,588. The poverty rate stands at 5.14%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $125,199 | - |
| Families | $114,738 | $131,105 |
| Households | $94,588 | $111,331 |
| Non Families | $46,002 | $59,527 |
Average Income
Median Household Income
Poverty Rate
