Foster is located in Big Stone County, Minnesota. Foster has a 2025 population of 118 . Foster is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 118 in 2020.
The average household income in Foster is $87,165 with a poverty rate of 7.87%. The median age in Foster is 55.4 years: 52.8 years for males, and 55.5 years for females. For every 100 females there are 76.4 males.
Data after 2023 is projected based on recent change
The racial composition of Foster includes 98.43% White, and smaller percentages for other race and multiracial populations.
White (98.43%)
Other race (1.57%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 125 | 98.43% |
| Other race | 2 | 1.57% |
Married
Widowed
Divorced
Separated
Never Married
Foster's average per capita income is $39,286. Household income levels show a median of $75,250. The poverty rate stands at 7.87%.
Name | Median | Mean |
|---|---|---|
| Families | $76,500 | $84,121 |
| Married Families | $76,250 | - |
| Households | $75,250 | $87,165 |
| Non Families | - | $93,253 |
Average Income
Median Household Income
Poverty Rate