There are 12 zip codes in Oconto County, Wisconsin. The most populated is 54153, located in Oconto. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
54153Oconto7,085
54154Oconto Falls5,657
54171Sobieski3,903
54124Gillett3,367
54139Lena3,267
54101Abrams3,105
54174Suring3,069
54141Little Suamico2,643
54161Pound2,559
54149Mountain1,206
54175Townsend1,115
54138Lakewood864

Oconto County, Wisconsin Zip Codes by Population (2024)