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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.

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Waller County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Waller County.

County State ZIP Code City Area Codes
Waller County TX 77423 Brookshire 281, 346, 713, 832, 936, 979
Waller County TX 77445 Hempstead 281, 346, 713, 832, 936, 979
Waller County TX 77446 Prairie View 936, 979
Waller County TX 77466 Pattison 281, 346, 713, 832, 979
Waller County TX 77484 Waller 281, 346, 713, 832, 936, 979
Waller County TX 77491 Katy 713
Waller County TX 77492 Katy 713

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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.