Treasure County's 2026 population is estimated at 683, reflecting a -3.94% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Treasure County is the 55th largest county in Montana. The 2010 population was 714 and has grown -4.34% since 2010.
Data after 2023 is projected based on recent change
Overall: 52 years
Female: 46.8 years
Male: 53.7 years
There are 604 adults, (167 of whom are seniors) in Treasure County.
Female: 367 (50.1%)
Male: 365 (49.9%)
The racial composition of Treasure County includes 93.72% White, 3.01% other race, and smaller percentages for Two or more races, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 686 | 93.72% |
| Other race | 22 | 3.01% |
| Two or more races | 16 | 2.19% |
| Asian | 7 | 0.96% |
| Native American | 1 | 0.14% |
Treasure County 's average per capita income is $42,625. Household income levels show a median of $67,917. The poverty rate stands at 12.3%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $86,200 | - |
| Families | $86,100 | $108,369 |
| Households | $67,917 | $88,391 |
| Non Families | $33,750 | $50,564 |
Average Income
Median Household Income
Poverty Rate
