ZIP Codes Box

Rock County, Wisconsin ZIP codes

15ZIP codes
11Cities and towns
163,727People in ZIP areas
262, 608, 779Area codes

Rock County is in Wisconsin and the Central Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Rock County

ZIP codeCityTypePopulationMedian income
53501AftonPO Box only165–
53505AvalonStandard358$91,500
53511BeloitStandard48,701$67,067
53512BeloitPO Box only––
53525ClintonStandard4,066$79,323
53534EdgertonStandard12,241$89,045
53536EvansvilleStandard9,547$87,667
53537FootvillePO Box only752$59,821
53542HanoverPO Box only––
53545JanesvilleStandard24,703$73,889
53546JanesvilleStandard29,867$75,825
53547JanesvillePO Box only––
53548JanesvilleStandard19,916$76,869
53563MiltonStandard11,280$89,528
53576OrfordvilleStandard2,131$63,750

Cities and towns in Rock County

Area codes in Rock County

Questions

How many ZIP codes are in Rock County, WI?
Rock County has 15 ZIP codes, 10 of them standard ZIP codes for street addresses.
What cities are in Rock County?
Rock County ZIP codes cover Janesville, Beloit, Afton, Avalon, Clinton, Edgerton, Evansville and Footville and 3 other places.
What area code is Rock County, WI?
Rock County uses area codes 262, 608, 779, 815 and 920.
What time zone is Rock County in?
Rock County is in Central Time.

Other Wisconsin counties