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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Texas ZIP Codes

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

State ZIP Code City County Area Codes
TX 77484 Waller Waller County 281, 346, 713, 832, 936, 979
TX 77485 Wallis Austin County 281, 346, 713, 832, 979
TX 77486 West Columbia Brazoria County 979
TX 77487 Sugar Land Fort Bend County 713
TX 77488 Wharton Wharton County 979
TX 77489 Missouri City Fort Bend County 281, 346, 713, 832
TX 77491 Katy Waller County 713
TX 77492 Katy Waller County 713
TX 77493 Katy Harris County 281, 346, 713, 832, 936
TX 77494 Katy Fort Bend County 281, 346, 713, 832
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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.