US States Zip Codes Directory 2026

Browse Zip Codes by State





We have 42735 Records of U.S Zip Codes from all over the United States!

Texas Zip Codes



Texas Texas is the second most populous and the second most extensive of the 50 states in the United States of America, and the most extensive state of the 48 contiguous United States. The name, based on the Caddo word tejas meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in East Texas. Located in the South Central United States, Texas shares an international border with the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south, and borders the US states of New Mexico to the west, Oklahoma to the north, Arkansas to the northeast, and Louisiana to the east. Texas has an area of 268,820 square miles (696,200 sq km), and a growing population of 25.7 million residents.

State Zip Code City County Area Codes
TX 78644 Lockhart Caldwell County 512, 737, 830
TX 78645 Leander Travis County 512, 737
TX 78646 Leander Williamson County 512
TX 78648 Luling Caldwell County 512, 737, 830
TX 78650 Mc Dade Bastrop County 512, 737
TX 78651 Mc Neil Williamson County 512
TX 78652 Manchaca Travis County 512, 737
TX 78653 Manor Travis County 512, 737
TX 78654 Marble Falls Burnet County 325, 512, 737, 830
TX 78655 Martindale Caldwell County 512, 737, 830
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Map of Texas



ZIP codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the code in the postal address. The basic format consists of five decimal numerical digits. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the ZIP code, a hyphen, and four more digits that determine a more precise location than the ZIP code alone. The term ZIP code was originally registered as a servicemark (a type of trademark) by the U.S. Postal Service, but its registration has since expired.


ZIP codes designate only delivery points within the United States and its dependencies, as well as locations of its armed forces. There are no ZIP codes reserved for designating mail bound for foreign destinations (with the exception of U.S. military units stationed outside of the United States), and therefore, international outbound mail should not include a ZIP code in the delivery address. The last line of a foreign address must only show the name of the country of destination.