Flathead County's estimated 2026 population is 116,591 with a growth rate of 0.89% in the past year according to the most recent United States census data. Flathead County is the 4th largest county in Montana. The 2010 population was 90,863 and has seen a growth of 28.32% since that time.
Data after 2023 is projected based on recent change
The racial composition of Flathead County includes 91.42% White, and smaller percentages for Native American, other race, Asian, Black or African American and multiracial populations.
White (91.42%)
Two or more races (5.53%)
Native American (1.03%)
Other race (0.91%)
Asian (0.85%)
Black or African American (0.25%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 99,139 | 91.42% |
| Two or more races | 6,000 | 5.53% |
| Native American | 1,115 | 1.03% |
| Other race | 992 | 0.91% |
| Asian | 924 | 0.85% |
| Black or African American | 275 | 0.25% |
Married
Widowed
Divorced
Separated
Never Married
Flathead County's average per capita income is $43,561. Household income levels show a median of $71,327. The poverty rate stands at 9.57%.
Name | Median | Mean |
|---|---|---|
| Married Families | $98,446 | $123,665 |
| Families | $87,536 | $113,313 |
| Households | $71,327 | $94,808 |
| Non Families | $40,137 | $57,567 |
Average Income
Median Household Income
Poverty Rate
