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 76631 Bynum Hill County 254
TX 76632 Chilton Falls County 254
TX 76633 China Spring McLennan County 254
TX 76634 Clifton Bosque County 254
TX 76635 Coolidge Limestone County 254, 430, 903
TX 76636 Covington Hill County 254, 682, 817
TX 76637 Cranfills Gap Bosque County 254
TX 76638 Crawford McLennan County 254
TX 76639 Dawson Navarro County 254, 430, 903
TX 76640 Elm Mott McLennan 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.