Foster is located in McKean County, Pennsylvania. Foster has a 2025 population of 3,885 . Foster is currently declining at a rate of -0.31% annually and its population has decreased by -3.79% since the most recent census, which recorded a population of 4,038 in 2020.
The average household income in Foster is $77,988 with a poverty rate of 12.19%. The median age in Foster is 47.5 years: 43.8 years for males, and 51.3 years for females. For every 100 females there are 122.0 males.
Data after 2023 is projected based on recent change
The racial composition of Foster includes 98% White, and smaller percentages for Two or more races, Asian, other race and multiracial populations.
White (98%)
Two or more races (1.5%)
Asian (0.33%)
Other race (0.18%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,912 | 98% |
| Two or more races | 60 | 1.5% |
| Asian | 13 | 0.33% |
| Other race | 7 | 0.18% |
Married
Widowed
Divorced
Separated
Never Married
Foster's average per capita income is $46,934. Household income levels show a median of $61,797. The poverty rate stands at 12.19%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,688 | - |
| Families | $80,500 | $87,290 |
| Households | $61,797 | $77,988 |
| Non Families | $45,339 | $52,921 |
Average Income
Median Household Income
Poverty Rate