U.S. postal lookup

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.

42,735 verified records
All states and U.S. territories
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State directory

Texas ZIP Codes

Complete postal directory, details, and geographic map for the State of Texas.

State ZIP Code City County Area Codes
TX 76528 Gatesville Coryell County 254
TX 76530 Granger Williamson County 254, 512, 737
TX 76531 Hamilton Hamilton County 254, 325
TX 76533 Heidenheimer Bell County 254
TX 76534 Holland Bell County 254
TX 76537 Jarrell Williamson County 254, 512, 737
TX 76538 Jonesboro Coryell County 254
TX 76539 Kempner Lampasas County 254, 512, 737
TX 76540 Killeen Bell County 254
TX 76541 Killeen Bell County 254
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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.