County · Wisconsin · United States
Columbia County ZIP codes
13 ZIP codes · 13 cities · FIPS 55021
Key facts
- State
- Wisconsin (WI)
- FIPS code
- 55021
- Population
- 58,322
- Median household income
- $82,792
- Median age
- 43.3
- Land area
- 765.5 sq mi (1,982.8 km²)
- Population density
- 76 / sq mi
- Area codes
- 274, 353, 608, 920
Cities and ZIP codes in Columbia County (13)
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.