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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 77043 Houston 281, 346, 713, 832
Harris County TX 77044 Houston 281, 346, 713, 832
Harris County TX 77045 Houston 281, 346, 713, 832
Harris County TX 77046 Houston 281, 346, 713, 832
Harris County TX 77047 Houston 281, 346, 713, 832
Harris County TX 77048 Houston 281, 346, 713, 832
Harris County TX 77049 Houston 281, 346, 713, 832
Harris County TX 77050 Houston 281, 346, 713, 832
Harris County TX 77051 Houston 281, 346, 713, 832
Harris County TX 77052 Houston 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.