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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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Harris County ZIP Codes

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

County State ZIP Code City Area Codes
Harris County TX 77532 Crosby 281, 346, 713, 832, 936
Harris County TX 77536 Deer Park 281, 346, 713, 832
Harris County TX 77547 Galena Park 281, 346, 713, 832
Harris County TX 77562 Highlands 281, 346, 713, 832
Harris County TX 77571 La Porte 281, 346, 713, 832
Harris County TX 77572 La Porte 713
Harris County TX 77586 Seabrook 281, 346, 713, 832
Harris County TX 77587 South Houston 281, 346, 713, 832
Harris County TX 77598 Webster 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.