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	37778	Lowland	Hamblen County	`423`
TN	37779	Luttrell	Union County	`865`
TN	37801	Maryville	Blount County	`423, 865`
TN	37802	Maryville	Blount County	`865`
TN	37803	Maryville	Blount County	`865`
TN	37804	Maryville	Blount County	`865`
TN	37806	Mascot	Knox County	`865`
TN	37807	Maynardville	Union County	`423, 865`
TN	37809	Midway	Greene County	`423`
TN	37810	Mohawk	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.