| Name | Foster County |
| State | North Dakota |
| FIPS Code | 38031 |
| County Seat | Carrington |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 3,368 |
| Population Growth Rate(2000-2022) | 1.62% |
| Majority Ethnicity | White 97.37% |
| Public School Majority Ethnicity | White 91% |
| Partisan Voting Index | Strongly Republican:+25 |
| Unemployment Rate (January 2025) | 2.0% |
| Area Code(s) | 701 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 97.37% |
| African American | 0.48% |
| Hispanic | 1% |
| Asian | 0.06% |
| Native American | 0.54% |
| Hawaiin/Pacific Islander | 0.54% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 91.39% |
| African American | 0.86% |
| Hispanic | 1.58% |
| Asian | 0.14% |
| Native American | 2.15% |
| Hawaiin/Pacific Islander | 0.57% |