Total Population in Gallatin County, MT
ACS 2024 5-Year Estimates
124,074
Rank #527/3,222 · #2 in MT
84th
Gallatin 124,074
MT 1,116,875 -88.9%
US 330M
Total Population Trend
Rankings →Percentile Rank Over Time
Year-over-Year Population Change
National Distribution
How Gallatin County's total population of 124,074 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 Gallatin County for total population.
Nearby Rankings
Full ranking →| #524 | Morgan County, AL | 124,471 |
| #525 | Jasper County, MO | 124,357 |
| #526 | Clark County, IN | 124,354 |
| #527 | Gallatin County, MT | 124,074 |
| #528 | Rockwall County, TX | 123,617 |
| #529 | Fayette County, GA | 122,244 |
| #530 | Comanche County, OK | 121,825 |
About Total Population
Gallatin County, Montana has a total population of 124,074, ranking #527 of 3,222 counties nationwide — 100.0% below the national value of 330M. Within Montana, it ranks #2 of 56. This places it in the 84th 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.