County · Kentucky · United States
Marshall County ZIP codes
4 ZIP codes · 4 cities · FIPS 21157
Key facts
- State
- Kentucky (KY)
- FIPS code
- 21157
- Population
- 31,728
- Median household income
- $63,611
- Median age
- 44.9
- Land area
- 302.2 sq mi (782.7 km²)
- Population density
- 105 / sq mi
- Area codes
- 270
Cities and ZIP codes in Marshall County (4)
| City | ZIP codes |
|---|---|
| Benton | 42025 |
| Calvert City | 42029 |
| Gilbertsville | 42044 |
| Hardin | 42048 |
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.