Missoula County's 2026 population is estimated at 124,294, reflecting a 0.71% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Missoula County is the 3rd largest county in Montana. The 2010 population was 109,471 and has grown 13.54% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.1 years
Female: 37.8 years
Male: 36.6 years
There are 98,735 adults, (20,683 of whom are seniors) in Missoula County.
Female: 60,134 (49.8%)
Male: 60,538 (50.2%)
The racial composition of Missoula County includes 86.91% White, and smaller percentages for Native American, Asian, other race, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 104,875 | 86.91% |
| Two or more races | 8,921 | 7.39% |
| Native American | 2,472 | 2.05% |
| Asian | 1,920 | 1.59% |
| Other race | 1,807 | 1.5% |
| Black or African American | 518 | 0.43% |
| Native Hawaiian or Pacific Islander | 159 | 0.13% |
Missoula County 's average per capita income is $48,665. Household income levels show a median of $75,598. The poverty rate stands at 10.13%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $119,807 | $151,484 |
| Families | $103,965 | $134,010 |
| Households | $75,598 | $103,306 |
| Non Families | $45,874 | $63,257 |
Average Income
Median Household Income
Poverty Rate
