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 77004 Houston Harris County 281, 346, 713, 832
TX 77005 Houston Harris County 281, 346, 713, 832
TX 77006 Houston Harris County 281, 346, 713, 832
TX 77007 Houston Harris County 281, 346, 713, 832
TX 77008 Houston Harris County 281, 346, 713, 832
TX 77009 Houston Harris County 281, 346, 713, 832
TX 77010 Houston Harris County 281, 346, 713, 832
TX 77011 Houston Harris County 281, 346, 713, 832
TX 77012 Houston Harris County 281, 346, 713, 832
TX 77013 Houston Harris 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.