There are 14 zip codes in Walworth County, Wisconsin. The most populated is 53190, located in Whitewater. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
5319020,500Whitewater
5312118,868Elkhorn
5314717,842Lake Geneva
5311516,098Delavan
5312010,889East Troy
531289,185Genoa City
531844,100Walworth
531913,268Williams Bay
535852,250Sharon
531142,219Darien
531251,738Fontana
53176145Springfield
53195118Zenda
531570Pell Lake

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