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 37010 Adams Montgomery County 270, 364, 615, 629, 931
TN 37011 Antioch Davidson County 615
TN 37012 Alexandria DeKalb County 615, 629
TN 37013 Antioch Davidson County 615, 629
TN 37014 Arrington Williamson County 615, 629
TN 37015 Ashland City Cheatham County 615, 629, 931
TN 37016 Auburntown Cannon County 615, 629
TN 37018 Beechgrove Coffee County 615, 629, 931
TN 37019 Belfast Marshall County 931
TN 37020 Bell Buckle Bedford County 615, 629, 931
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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.