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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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Green Lake County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Green Lake County.

County State ZIP Code City Area Codes
Green Lake County WI 53926 Dalton 608, 920
Green Lake County WI 53939 Kingston 920
Green Lake County WI 53946 Markesan 608, 920
Green Lake County WI 53947 Marquette 920
Green Lake County WI 54923 Berlin 920
Green Lake County WI 54941 Green Lake 920
Green Lake County WI 54968 Princeton 608, 920

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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.