Liberty County's 2026 population is estimated at 1,884, reflecting a -1.31% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Liberty County is the 46th largest county in Montana. The 2010 population was 2,349 and has grown -19.8% since 2010.
Data after 2023 is projected based on recent change
Overall: 39.8 years
Female: 41.2 years
Male: 38.5 years
There are 1,421 adults, (421 of whom are seniors) in Liberty County.
Female: 1,038 (53.2%)
Male: 914 (46.8%)
The racial composition of Liberty County includes 93.39% White, and smaller percentages for Native American, Asian, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,823 | 93.39% |
| Two or more races | 62 | 3.18% |
| Native American | 46 | 2.36% |
| Asian | 14 | 0.72% |
| Other race | 7 | 0.36% |
Liberty County 's average per capita income is $43,696. Household income levels show a median of $57,857. The poverty rate stands at 25.79%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $82,857 | - |
| Families | $67,727 | $91,746 |
| Households | $57,857 | $84,368 |
| Non Families | $44,500 | $71,533 |
Average Income
Median Household Income
Poverty Rate