U.S. postal lookup

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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State directory

Tennessee ZIP Codes

Complete postal directory, details, and geographic map for the State of Tennessee.

State ZIP Code City County Area Codes
TN 37022 Bethpage Sumner County 615, 629
TN 37023 Big Rock Stewart County 931
TN 37024 Brentwood Williamson County 615
TN 37025 Bon Aqua Hickman County 615, 629, 931
TN 37026 Bradyville Cannon County 615, 629, 931
TN 37027 Brentwood Williamson County 615, 629
TN 37028 Bumpus Mills Stewart County 270, 364, 931
TN 37029 Burns Dickson County 615, 629
TN 37030 Carthage Smith County 615, 629, 931
TN 37031 Castalian Springs Sumner County 615, 629
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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.