Thompson Falls is a city located in Sanders County, Montana. Thompson Falls has a 2025 population of 1,565 . It is also the county seat of Sanders County . Thompson Falls is currently growing at a rate of 2.56% annually and its population has increased by 14.48% since the most recent census, which recorded a population of 1,367 in 2020.
The average household income in Thompson Falls is $59,084 with a poverty rate of 7.69%. The median age in Thompson Falls is 47.2 years: 42.2 years for males, and 50.4 years for females. For every 100 females there are 103.9 males.
Data after 2023 is projected based on recent change
The racial composition of Thompson Falls includes 87.63% White, and smaller percentages for Native American, Black or African American and multiracial populations.
White (87.63%)
Two or more races (11.1%)
Native American (0.83%)
Black or African American (0.45%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,374 | 87.63% |
| Two or more races | 174 | 11.1% |
| Native American | 13 | 0.83% |
| Black or African American | 7 | 0.45% |
Married
Widowed
Divorced
Separated
Never Married
Thompson Falls' average per capita income is $31,132. Household income levels show a median of $53,203. The poverty rate stands at 7.69%.
Name | Median | Mean |
|---|---|---|
| Married Families | $78,031 | - |
| Families | $69,250 | $66,322 |
| Households | $53,203 | $59,084 |
| Non Families | $39,013 | $48,459 |
Average Income
Median Household Income
Poverty Rate