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 77328 Cleveland Montgomery County 281, 346, 713, 832, 936
TX 77331 Coldspring San Jacinto County 281, 346, 713, 832, 936
TX 77332 Dallardsville Polk County 936
TX 77333 Dobbin Montgomery County 936
TX 77334 Dodge Walker County 936
TX 77335 Goodrich Polk County 936
TX 77336 Huffman Harris County 281, 346, 713, 832, 936
TX 77337 Hufsmith Harris County 713
TX 77338 Humble Harris County 281, 346, 713, 832
TX 77339 Kingwood 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.