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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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Rockwall County ZIP Codes

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

County State ZIP Code City Area Codes
Rockwall County TX 75032 Rockwall 214, 430, 469, 903, 945, 972
Rockwall County TX 75087 Rockwall 214, 430, 469, 903, 945, 972
Rockwall County TX 75132 Fate 214, 430, 469, 903, 945, 972
Rockwall County TX 75189 Royse City 214, 430, 469, 903, 945, 972

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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.