| Name | Greer County |
| State | Oklahoma |
| FIPS Code | 40055 |
| County Seat | Mangum |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 5,491 |
| Population Growth Rate(2020-2024) | 0% |
| Majority Ethnicity | White 78.62% |
| Public School Majority Ethnicity | White 68% |
| Partisan Voting Index | Strongly Republican:+34 |
| Unemployment Rate (May 2026) | 4.0% |
| Area Code(s) | 580 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 78.62% |
| African American | 6.59% |
| Hispanic | 12.48% |
| Asian | 0.44% |
| Native American | 1.86% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 67.78% |
| African American | 2.37% |
| Hispanic | 20.91% |
| Asian | 0.75% |
| Native American | 2.48% |
| Hawaiin/Pacific Islander | 0.11% |