Rock County, WI Zip Codes
20 zip codes across 16 cities in Rock County, WI
About Rock County
Rock County, Wisconsin (WI) contains 20 unique zip codes spanning 16 cities and communities. Each zip code covers a different area within the county, with varying demographics, income levels, and housing markets.
Browse the complete list below to find detailed population, income, home values, cost of living, and climate data for any zip code in Rock County.
Cities in Rock County
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All Zip Codes in Rock County, WI
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Frequently Asked Questions
How many zip codes are in Rock County, WI?
Rock County, WI has 20 zip codes across 16 cities.
What cities are in Rock County?
Cities in Rock County include Adrian, Avalon, Bassett, Beaver Creek, Beloit, Brodhead, Edgerton, Evansville, Footville, Hardwick, Hills, Janesville, Luverne, Milton, Rose, Stuart.
What state is Rock County in?
Rock County is located in Wisconsin (WI).
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.