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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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Dallas County ZIP Codes

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

County State ZIP Code City Area Codes
Dallas County TX 75138 Duncanville 214
Dallas County TX 75141 Hutchins 214, 469, 945, 972
Dallas County TX 75146 Lancaster 214, 469, 945, 972
Dallas County TX 75149 Mesquite 214, 469, 945, 972
Dallas County TX 75150 Mesquite 214, 469, 945, 972
Dallas County TX 75159 Seagoville 214, 430, 469, 903, 945, 972
Dallas County TX 75172 Wilmer 214, 469, 945, 972
Dallas County TX 75180 Balch Springs 214, 469, 945, 972
Dallas County TX 75181 Mesquite 214, 469, 945, 972
Dallas County TX 75182 Sunnyvale 214, 469, 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.