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 37641 Chuckey Greene County 423, 828
TN 37642 Church Hill Hawkins County 276, 423
TN 37643 Elizabethton Carter County 423
TN 37644 Elizabethton Carter County 423
TN 37645 Mount Carmel Hawkins County 423
TN 37650 Erwin Unicoi County 423, 828
TN 37656 Fall Branch Washington County 423
TN 37657 Flag Pond Unicoi County 423, 828
TN 37658 Hampton Carter County 423
TN 37659 Jonesborough Washington 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.