| Name | Fergus County |
| State | Montana |
| FIPS Code | 30027 |
| County Seat | Lewistown |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2024) | 11,816 |
| Population Growth Rate(2020-2024) | 3.17% |
| Majority Ethnicity | White 94.17% |
| Public School Majority Ethnicity | White 89% |
| Partisan Voting Index | Strongly Republican:+26 |
| Unemployment Rate (May 2026) | 4.6% |
| Sales Tax Rate (2025) | 0% |
| Area Code(s) | 406 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 94.17% |
| African American | 0.65% |
| Hispanic | 2.23% |
| Asian | 0.89% |
| Native American | 2.06% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 89.11% |
| African American | 0.61% |
| Hispanic | 5.08% |
| Asian | 0.67% |
| Native American | 2.08% |
| Hawaiin/Pacific Islander | 0.24% |