There are 14 zip codes in Sauk County, Wisconsin. The most populated is 53913, located in Baraboo. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
5391321,346Baraboo
5395914,294Reedsburg
535786,392Prairie Du Sac
535836,123Sauk City
535883,741Spring Green
539413,144La Valle
539512,466North Freedom
535611,891Merrimac
535771,300Plain
539431,284Loganville
539371,069Hillpoint
53961922Rock Springs
53942142Lime Ridge
539400Lake Delton

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