There are 13 zip codes in Rock County, Wisconsin. The most populated is 53511, located in Beloit. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

Zip Code
City
Population
53511Beloit48,749
53546Janesville29,352
53545Janesville24,037
53548Janesville20,119
53534Edgerton12,306
53563Milton11,587
53536Evansville9,073
53520Brodhead6,709
53525Clinton4,024
53576Orfordville2,359
53537Footville871
53505Avalon368
53501Afton249

Rock County, Wisconsin Zip Codes by Population (2024)