Preble County's 2026 population is estimated at 40,610, reflecting a -0.13% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Preble County is the 61st largest county in Ohio. The 2010 population was 42,172 and has grown -3.7% since 2010.
Overall: 43.3 years
Female: 44.2 years
Male: 42.3 years
There are 31,722 adults, (8,298 of whom are seniors) in Preble County.
Female: 20,470 (50.2%)
Male: 20,295 (49.8%)
The racial composition of Preble County includes 95.47% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 38,918 | 95.47% |
| Two or more races | 1,308 | 3.21% |
| Black or African American | 268 | 0.66% |
| Other race | 167 | 0.41% |
| Asian | 96 | 0.24% |
| Native American | 8 | 0.02% |
Preble County 's average per capita income is $46,977. Household income levels show a median of $69,223. The poverty rate stands at 12.59%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $97,824 | $109,990 |
| Families | $85,501 | $98,487 |
| Households | $69,223 | $84,162 |
| Non Families | $39,163 | $47,422 |
Average Income
Median Household Income
Poverty Rate
