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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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Oldham County ZIP Codes

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

County State ZIP Code City Area Codes
Oldham County KY 40010 Buckner 502
Oldham County KY 40014 Crestwood 502
Oldham County KY 40026 Goshen 502
Oldham County KY 40031 La Grange 502
Oldham County KY 40032 La Grange 502
Oldham County KY 40056 Pewee Valley 502
Oldham County KY 40077 Westport 502
Oldham County TX 79001 Adrian 806
Oldham County TX 79092 Vega 806
Oldham County TX 79098 Wildorado 806

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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.