Total Population in Custer County, MT
ACS 2024 5-Year Estimates
11,961
Rank #2,354/3,222 · #17 in MT
27th
Custer 11,961
MT 1,116,875 -98.9%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Custer County's total population of 11,961 compares to all 3,222 U.S. counties. Values range from 33 to 9,808,667.
Distribution of Total Population Across All Counties
Ranking Context
Counties ranked closest to Custer County for total population.
Nearby Rankings
Full ranking →| #2,351 | Lunenburg County, VA | 12,016 |
| #2,352 | Union County, IA | 11,993 |
| #2,353 | Douglas County, MO | 11,965 |
| #2,354 | Custer County, MT | 11,961 |
| #2,355 | Trousdale County, TN | 11,957 |
| #2,356 | Blackford County, IN | 11,950 |
| #2,357 | Rolette County, ND | 11,924 |
About Total Population
Custer County, Montana has a total population of 11,961, ranking #2,354 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Montana, it ranks #17 of 56. This places it in the 27th percentile nationally.
Total population count from the American Community Survey. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.