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
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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 78599 Weslaco Hidalgo County 956
TX 78602 Bastrop Bastrop County 512, 737
TX 78604 Belmont Gonzales County 830
TX 78605 Bertram Burnet County 512, 737, 830
TX 78606 Blanco Blanco County 512, 737, 830
TX 78607 Bluffton Llano County 325, 512, 737
TX 78608 Briggs Burnet County 512, 737
TX 78609 Buchanan Dam Llano County 325, 512, 737
TX 78610 Buda Hays County 512, 737
TX 78611 Burnet Burnet County 325, 512, 737, 830
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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.