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
Maps and coordinates
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 37367 Pikeville Bledsoe County 423, 931
TN 37369 Reliance Polk County 423
TN 37370 Riceville McMinn County 423
TN 37371 Athens Mcminn County 423
TN 37373 Sale Creek Hamilton County 423
TN 37374 Sequatchie Marion County 423, 931
TN 37375 Sewanee Franklin County 423, 931
TN 37376 Sherwood Franklin County 256, 423, 931, 938
TN 37377 Signal Mountain Hamilton County 423
TN 37378 Smartt Warren County 931
Page 25 of 80

Geographic Map of Tennessee

Postal context

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.