County · Kentucky · United States
Johnson County ZIP codes
18 ZIP codes · 18 cities · FIPS 21115
Key facts
- State
- Kentucky (KY)
- FIPS code
- 21115
- Population
- 22,464
- Median household income
- $43,014
- Median age
- 42
- Land area
- 262 sq mi (678.5 km²)
- Population density
- 86 / sq mi
- Area codes
- 606
Cities and ZIP codes in Johnson County (18)
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.