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 78830 Big Wells Dimmit County 830
TX 78832 Brackettville Kinney County 830
TX 78833 Camp Wood Real County 830
TX 78834 Carrizo Springs Dimmit County 830
TX 78836 Catarina Dimmit County 830, 956
TX 78837 Comstock Val Verde County 325, 432, 830
TX 78838 Concan Uvalde County 830
TX 78839 Crystal City Zavala County 830
TX 78840 Del Rio Val Verde County 325, 432, 830
TX 78841 Del Rio Val Verde County 432
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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.