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
All states and U.S. territories
Maps and coordinates
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 77520 Baytown Harris County 281, 346, 713, 832
TX 77521 Baytown Harris County 281, 346, 713, 832, 936
TX 77522 Baytown Harris County 713
TX 77523 Baytown Chambers County 281, 346, 713, 832, 936
TX 77530 Channelview Harris County 281, 346, 713, 832
TX 77531 Clute Brazoria County 979
TX 77532 Crosby Harris County 281, 346, 713, 832, 936
TX 77533 Daisetta Liberty County 409, 936
TX 77534 Danbury Brazoria County 281, 346, 713, 832, 979
TX 77535 Dayton Liberty County 281, 346, 713, 832, 936
Page 142 of 267

Geographic Map of Texas

Postal context

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.