| Name | Posey County |
| State | Indiana |
| FIPS Code | 18129 |
| County Seat | Mount Vernon |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 25,047 |
| Population Growth Rate(2020-2024) | -0.68% |
| Majority Ethnicity | White 97.36% |
| Public School Majority Ethnicity | White 91% |
| Partisan Voting Index | Strongly Republican:+22 |
| Unemployment Rate (May 2026) | 3.2% |
| Area Code(s) | 812 / 930 / 618 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 97.36% |
| African American | 0.72% |
| Hispanic | 1.55% |
| Asian | 0.3% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 91.32% |
| African American | 1.67% |
| Hispanic | 2.49% |
| Asian | 0.31% |
| Native American | 0.17% |
| Hawaiin/Pacific Islander | 0% |