County · Kentucky · United States
Knox County ZIP codes
16 ZIP codes · 16 cities · FIPS 21121
Key facts
- State
- Kentucky (KY)
- FIPS code
- 21121
- Population
- 30,034
- Median household income
- $33,153
- Median age
- 39.8
- Land area
- 386.3 sq mi (1,000.5 km²)
- Population density
- 78 / sq mi
- Area codes
- 606
Cities and ZIP codes in Knox County (16)
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.