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 37730 Eagan Claiborne County 423
TN 37731 Eidson Hawkins County 276, 423, 865
TN 37732 Elgin Scott County 423
TN 37733 Rugby Morgan County 423
TN 37737 Friendsville Blount County 865
TN 37738 Gatlinburg Sevier County 423, 828, 865
TN 37742 Greenback Loudon County 423, 865
TN 37743 Greeneville Greene County 423, 828
TN 37744 Greeneville Greene County 423
TN 37745 Greeneville Greene 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.