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 37881 Thorn Hill Grainger County 423, 865
TN 37882 Townsend Blount County 423, 828, 865
TN 37885 Vonore Monroe County 423, 828, 865
TN 37886 Walland Blount County 865
TN 37887 Wartburg Morgan County 423, 865, 931
TN 37888 Washburn Grainger County 423, 865
TN 37890 White Pine Jefferson County 423, 865
TN 37891 Whitesburg Hamblen County 423
TN 37892 Winfield Scott County 423, 606
TN 37901 Knoxville Knox County 865
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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.