| Name | Roger Mills County |
| State | Oklahoma |
| FIPS Code | 40129 |
| County Seat | Cheyenne |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 3,331 |
| Population Growth Rate(2020-2024) | -3.24% |
| Majority Ethnicity | White 83.4% |
| Public School Majority Ethnicity | White 71% |
| Partisan Voting Index | Strongly Republican:+41 |
| Unemployment Rate (May 2026) | 3.1% |
| Area Code(s) | 580 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 83.4% |
| African American | 0.09% |
| Hispanic | 8.36% |
| Asian | 0.3% |
| Native American | 7.2% |
| Hawaiin/Pacific Islander | 0.65% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 70.54% |
| African American | 0.12% |
| Hispanic | 11.26% |
| Asian | 0.12% |
| Native American | 9.82% |
| Hawaiin/Pacific Islander | 0% |