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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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Casey County ZIP Codes

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

County State ZIP Code City Area Codes
Casey County KY 42516 Bethelridge 606
Casey County KY 42528 Dunnville 270, 364, 606
Casey County KY 42539 Liberty 270, 364, 606
Casey County KY 42541 Middleburg 606
Casey County KY 42565 Windsor 270, 364, 606
Casey County KY 42566 Yosemite 606

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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.