Des Moines County's estimated 2026 population is 38,004 with a growth rate of -0.19% in the past year according to the most recent United States census data. Des Moines County is the 17th largest county in Iowa. The 2010 population was 40,243 and has seen a growth of -5.56% since that time.
Data after 2023 is projected based on recent change
Overall: 42.3 years
Female: 43.1 years
Male: 41.5 years
There are 29,927 adults, (8,180 of whom are seniors) in Des Moines County.
Female: 19,413 (50.4%)
Male: 19,074 (49.6%)
The racial composition of Des Moines County includes 85.46% White, 4.75% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 32,890 | 85.46% |
| Two or more races | 2,951 | 7.67% |
| Black or African American | 1,830 | 4.75% |
| Asian | 464 | 1.21% |
| Other race | 225 | 0.58% |
| Native American | 126 | 0.33% |
| Native Hawaiian or Pacific Islander | 1 | 0% |
Des Moines County's average per capita income is $43,577. Household income levels show a median of $62,928. The poverty rate stands at 12.84%.
Name | Median | Mean |
|---|---|---|
| Married Families | $94,321 | - |
| Families | $80,337 | $100,230 |
| Households | $62,928 | $80,523 |
| Non Families | $35,051 | $47,128 |
Average Income
Median Household Income
Poverty Rate