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 78066 Rio Medina Medina County 830
TX 78067 San Ygnacio Zapata County 361, 956
TX 78069 Somerset Atascosa County 210, 726, 830
TX 78070 Spring Branch Comal County 830
TX 78071 Three Rivers Live Oak County 361
TX 78072 Tilden McMullen County 361, 830
TX 78073 Von Ormy Bexar County 210, 726, 830
TX 78074 Waring Kendall County 830
TX 78075 Whitsett Live Oak County 361, 830
TX 78076 Zapata Zapata County 361, 830, 956
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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.