Decatur County's estimated 2026 population is 26,473 with a growth rate of 0.1% in the past year according to the most recent United States census data. Decatur County is the 59th largest county in Indiana. The 2010 population was 25,795 and has seen a growth of 2.63% since that time.
Data after 2023 is projected based on recent change
The racial composition of Decatur County includes 93.67% White, and smaller percentages for other race, Native American, Black or African American, Asian and multiracial populations.
White (93.67%)
Two or more races (4.82%)
Other race (0.72%)
Native American (0.38%)
Black or African American (0.32%)
Asian (0.09%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 24,739 | 93.67% |
| Two or more races | 1,274 | 4.82% |
| Other race | 189 | 0.72% |
| Native American | 101 | 0.38% |
| Black or African American | 84 | 0.32% |
| Asian | 24 | 0.09% |
Married
Widowed
Divorced
Separated
Never Married
Decatur County's average per capita income is $49,759. Household income levels show a median of $74,228. The poverty rate stands at 9.35%.
Name | Median | Mean |
|---|---|---|
| Married Families | $95,645 | - |
| Families | $86,716 | $109,003 |
| Households | $74,228 | $92,391 |
| Non Families | $38,873 | $51,678 |
Average Income
Median Household Income
Poverty Rate