Lake County's estimated 2026 population is 33,401 with a growth rate of 0.03% 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 16.01% since that time.
Data after 2023 is projected based on recent change
Overall: 44.3 years
Female: 44.9 years
Male: 43.1 years
There are 25,394 adults, (7,894 of whom are seniors) in Lake County.
Female: 16,485 (50.6%)
Male: 16,076 (49.4%)
The racial composition of Lake County includes 65.62% White, 20.29% Native American, and smaller percentages for other race, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 21,367 | 65.62% |
| Native American | 6,608 | 20.29% |
| Two or more races | 3,952 | 12.14% |
| Other race | 287 | 0.88% |
| Asian | 218 | 0.67% |
| Black or African American | 71 | 0.22% |
| Native Hawaiian or Pacific Islander | 58 | 0.18% |
Lake County's average per capita income is $41,126. Household income levels show a median of $63,360. The poverty rate stands at 17.24%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,132 | $122,994 |
| Families | $79,468 | $107,577 |
| Households | $63,360 | $90,243 |
| Non Families | $35,658 | $50,707 |
Average Income
Median Household Income
Poverty Rate
