| Name | Decatur County |
| State | Indiana |
| FIPS Code | 18031 |
| County Seat | Greensburg |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 26,395 |
| Population Growth Rate(2020-2024) | -0.3% |
| Majority Ethnicity | White 96.68% |
| Public School Majority Ethnicity | White 93% |
| Partisan Voting Index | Strongly Republican:+30 |
| Unemployment Rate (May 2026) | 3.6% |
| Sales Tax Rate (2025) | 7% |
| Area Code(s) | 812 / 930 / 765 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 96.68% |
| African American | 0.33% |
| Hispanic | 2.5% |
| Asian | 0.09% |
| Native American | 0.39% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 92.55% |
| African American | 0.5% |
| Hispanic | 3.88% |
| Asian | 0.33% |
| Native American | 0.2% |
| Hawaiin/Pacific Islander | 0.08% |