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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 County ZIP Codes

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

County State ZIP Code City Area Codes
Green County WI 53502 Albany 608
Green County WI 53520 Brodhead 608, 779, 815
Green County WI 53522 Browntown 608, 779, 815
Green County WI 53550 Juda 608, 779, 815
Green County WI 53566 Monroe 608, 779, 815
Green County WI 53570 Monticello 608
Green County WI 53574 New Glarus 608
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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.