Lake County's estimated 2025 population is 34,308 with a growth rate of 1.43% in the past year according to the most recent United States census data. Lake County is the 9th largest county in Montana. The 2010 population was 28,792 and has seen a growth of 19.16% since that time.
Data after 2023 is projected based on recent change
The racial composition of Lake County includes 65.63% White, 21.05% Native American, and smaller percentages for other race, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
White
Native American
Two or more races
Other race
Asian
Black or African American
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 21,050 | 65.63% |
| Native American | 6,750 | 21.05% |
| Two or more races | 3,724 | 11.61% |
| Other race | 287 | 0.89% |
| Asian | 168 | 0.52% |
| Black or African American | 67 | 0.21% |
| Native Hawaiian or Pacific Islander | 27 | 0.08% |
Married
Widowed
Divorced
Separated
Never Married
Lake County's average per capita income is $38,980. Household income levels show a median of $61,965. The poverty rate stands at 17.72%.
Name | Median | Mean |
|---|---|---|
| Married Families | $89,029 | $113,787 |
| Families | $76,688 | $99,161 |
| Households | $61,965 | $84,874 |
| Non Families | $32,068 | $48,285 |
Average Income
Median Household Income
Poverty Rate
