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.

42,735 verified records
All states and U.S. territories
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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 37717 Clinton Anderson County 865
TN 37719 Coalfield Morgan County 865
TN 37721 Corryton Knox County 865
TN 37722 Cosby Cocke County 423, 828, 865
TN 37723 Crab Orchard Cumberland County 423, 865, 931
TN 37724 Cumberland Gap Claiborne County 276, 423, 606
TN 37725 Dandridge Jefferson County 423, 865
TN 37726 Deer Lodge Morgan County 423, 931
TN 37727 Del Rio Cocke County 423, 828
TN 37729 Duff Campbell County 423
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Geographic Map of Tennessee

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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.