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
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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 37303 Athens McMinn County 423
TN 37304 Bakewell Hamilton County 423
TN 37305 Beersheba Springs Grundy County 931
TN 37306 Belvidere Franklin County 256, 931, 938
TN 37307 Benton Polk County 423
TN 37308 Birchwood Hamilton County 423
TN 37309 Calhoun McMinn County 423
TN 37310 Charleston Bradley County 423
TN 37311 Cleveland Bradley County 423, 706, 762
TN 37312 Cleveland Bradley 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.