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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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Smith County ZIP Codes

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

County State ZIP Code City Area Codes
Smith County TX 75702 Tyler 430, 903
Smith County TX 75703 Tyler 430, 903
Smith County TX 75704 Tyler 430, 903
Smith County TX 75705 Tyler 430, 903
Smith County TX 75706 Tyler 430, 903
Smith County TX 75707 Tyler 430, 903
Smith County TX 75708 Tyler 430, 903
Smith County TX 75709 Tyler 430, 903
Smith County TX 75710 Tyler 903
Smith County TX 75711 Tyler 430, 903
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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.