County · South Dakota · United States
Marshall County ZIP codes
6 ZIP codes · 6 cities · FIPS 46091
Key facts
- State
- South Dakota (SD)
- FIPS code
- 46091
- Population
- 4,355
- Median household income
- $72,500
- Median age
- 42.8
- Land area
- 838.1 sq mi (2,170.6 km²)
- Population density
- 5 / sq mi
- Area codes
- 605
Cities and ZIP codes in Marshall County (6)
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.