County · North Dakota · United States
Foster County ZIP codes
4 ZIP codes · 4 cities · FIPS 38031
Key facts
- State
- North Dakota (ND)
- FIPS code
- 38031
- Population
- 3,372
- Median household income
- $83,412
- Median age
- 43.3
- Land area
- 634.1 sq mi (1,642.3 km²)
- Population density
- 5 / sq mi
- Area codes
- 701
Cities and ZIP codes in Foster County (4)
| City | ZIP codes |
|---|---|
| Carrington | 58421 |
| Glenfield | 58443 |
| Grace City | 58445 |
| Mchenry | 58464 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.