Foster County's estimated 2026 population is 3,151 with a growth rate of -1.9% in the past year according to the most recent United States census data. Foster County is the 33rd largest county in North Dakota. The 2010 population was 3,343 and has seen a growth of -5.74% since that time.
Data after 2023 is projected based on recent change
Overall: 43.4 years
Female: 48.8 years
Male: 41.6 years
There are 2,627 adults, (810 of whom are seniors) in Foster County.
Female: 1,616 (48.1%)
Male: 1,742 (51.9%)
The racial composition of Foster County includes 94.25% White, and smaller percentages for Two or more races, Asian, other race, Black or African American, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,165 | 94.25% |
| Two or more races | 96 | 2.86% |
| Asian | 61 | 1.82% |
| Other race | 21 | 0.63% |
| Black or African American | 10 | 0.3% |
| Native American | 5 | 0.15% |
Foster County's average per capita income is $51,761. Household income levels show a median of $87,831. The poverty rate stands at 8.77%.
Name | Median | Mean |
|---|---|---|
| Married Families | $117,370 | - |
| Families | $115,703 | $129,283 |
| Households | $87,831 | $103,534 |
| Non Families | $45,375 | $59,750 |
Average Income
Median Household Income
Poverty Rate