Dearborn County's 2026 population is estimated at 51,477, reflecting a 0.04% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Dearborn County is the 28th largest county in Indiana. The 2010 population was 50,082 and has grown 2.79% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.1 years
Female: 43.5 years
Male: 40.8 years
There are 39,918 adults, (9,838 of whom are seniors) in Dearborn County.
Female: 25,413 (49.7%)
Male: 25,681 (50.3%)
The racial composition of Dearborn County includes 94.56% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 48,314 | 94.56% |
| Two or more races | 1,929 | 3.78% |
| Other race | 376 | 0.74% |
| Asian | 276 | 0.54% |
| Black or African American | 139 | 0.27% |
| Native American | 60 | 0.12% |
Dearborn County 's average per capita income is $53,934. Household income levels show a median of $84,735. The poverty rate stands at 7.64%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $110,614 | $123,113 |
| Families | $102,834 | $115,543 |
| Households | $84,735 | $99,812 |
| Non Families | $38,925 | $60,048 |
Average Income
Median Household Income
Poverty Rate