County · Indiana · United States
Knox County ZIP codes
12 ZIP codes · 12 cities · FIPS 18083
Key facts
- State
- Indiana (IN)
- FIPS code
- 18083
- Population
- 36,108
- Median household income
- $58,863
- Median age
- 39.1
- Land area
- 515.8 sq mi (1,336 km²)
- Population density
- 70 / sq mi
- Area codes
- 812, 930
Cities and ZIP codes in Knox County (12)
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.