Dickinson County's 2026 population is estimated at 18,300, reflecting a 0.39% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Dickinson County is the 38th largest county in Iowa. The 2010 population was 16,669 and has grown 9.78% since 2010.
Data after 2023 is projected based on recent change
Overall: 48.7 years
Female: 51.4 years
Male: 46.6 years
There are 14,561 adults, (5,079 of whom are seniors) in Dickinson County.
Female: 8,936 (49.7%)
Male: 9,054 (50.3%)
The racial composition of Dickinson County includes 94.3% White, and smaller percentages for Asian, other race, Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 16,965 | 94.3% |
| Two or more races | 853 | 4.74% |
| Asian | 83 | 0.46% |
| Other race | 73 | 0.41% |
| Native American | 10 | 0.06% |
| Black or African American | 6 | 0.03% |
Dickinson County 's average per capita income is $47,768. Household income levels show a median of $75,432. The poverty rate stands at 7.57%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $111,830 | - |
| Families | $104,386 | $130,654 |
| Households | $75,432 | $102,164 |
| Non Families | $43,408 | $58,464 |
Average Income
Median Household Income
Poverty Rate