Lake County's estimated 2026 population is 33,699 with a growth rate of 0.44% 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 17.04% 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 (65.63%)
Native American (21.05%)
Two or more races (11.61%)
Other race (0.89%)
Asian (0.52%)
Black or African American (0.21%)
Native Hawaiian or Pacific Islander (0.08%)
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
