There are 13 zip codes in Columbia County, Wisconsin. The most populated is 53901, located in Portage. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
5390114,978Portage
539258,810Columbus
535558,706Lodi
539546,782Pardeeville
539555,806Poynette
539603,219Rio
539563,035Randolph
539322,448Fall River
539232,224Cambria
539111,433Arlington
53969324Wyocena
53935261Friesland
53928102Doylestown

Zip Codes in Columbia County, Wisconsin by Population (2024)