Prairie County's 2026 population is estimated at 1,106, reflecting a -0.27% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Prairie County is the 52nd largest county in Montana. The 2010 population was 1,183 and has grown -6.51% since 2010.
Data after 2023 is projected based on recent change
Overall: 57.8 years
Female: 64.1 years
Male: 50.6 years
There are 1,038 adults, (527 of whom are seniors) in Prairie County.
Female: 578 (46.2%)
Male: 672 (53.8%)
The racial composition of Prairie County includes 88.64% White, 4.32% other race, and smaller percentages for Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,108 | 88.64% |
| Other race | 54 | 4.32% |
| Two or more races | 53 | 4.24% |
| Asian | 34 | 2.72% |
| Native American | 1 | 0.08% |
Prairie County 's average per capita income is $43,036. Household income levels show a median of $51,250. The poverty rate stands at 20.61%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $71,513 | - |
| Families | $71,447 | $106,483 |
| Households | $51,250 | $74,488 |
| Non Families | $30,288 | $39,171 |
Average Income
Median Household Income
Poverty Rate
