Lincoln County's 2026 population is estimated at 22,818, reflecting a 1.41% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Lincoln County is the 10th largest county in Montana. The 2010 population was 19,693 and has grown 15.87% since 2010.
Data after 2023 is projected based on recent change
Overall: 52.8 years
Female: 52.7 years
Male: 52.9 years
There are 17,352 adults, (6,382 of whom are seniors) in Lincoln County.
Female: 10,454 (49.4%)
Male: 10,721 (50.6%)
The racial composition of Lincoln County includes 90.4% White, and smaller percentages for Native American, other race, Asian, Native Hawaiian or Pacific Islander, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 19,142 | 90.4% |
| Two or more races | 1,600 | 7.56% |
| Native American | 240 | 1.13% |
| Other race | 92 | 0.43% |
| Asian | 61 | 0.29% |
| Native Hawaiian or Pacific Islander | 28 | 0.13% |
| Black or African American | 12 | 0.06% |
Lincoln County 's average per capita income is $38,189. Household income levels show a median of $47,143. The poverty rate stands at 15.44%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $74,113 | - |
| Families | $66,487 | $81,998 |
| Households | $47,143 | $66,699 |
| Non Families | $27,561 | $39,144 |
Average Income
Median Household Income
Poverty Rate
