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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 TN 37030 Carthage 615, 629, 931
Smith County TN 37145 Pleasant Shade 615, 629, 931
Smith County TN 37151 Riddleton 615, 629
Smith County TN 38547 Brush Creek 615, 629
Smith County TN 38552 Chestnut Mound 615, 629, 931
Smith County TN 38560 Elmwood 615, 629, 931
Smith County TN 38563 Gordonsville 615, 629
Smith County TN 38567 Hickman 615, 629
Smith County TN 38569 Lancaster 615, 629, 931
Smith County TX 75701 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.