Rock County, Wisconsin Zip Codes

Zip Code	City	Population
53511	Beloit	48,749
53546	Janesville	29,352
53545	Janesville	24,037
53548	Janesville	20,119
53534	Edgerton	12,306
53563	Milton	11,587
53536	Evansville	9,073
53520	Brodhead	6,709
53525	Clinton	4,024
53576	Orfordville	2,359
53537	Footville	871
53505	Avalon	368
53501	Afton	249

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.