ZIP Code 37774

37774 is one of Tennessee's ZIP codes, delivering to addresses in Loudon, Loudon County.

City: Loudon
County: Loudon County
State: Tennessee
Prefix: 377xx

Where this code sits

37774 is part of the 377xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Loudon.

Loudon Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37774 delivers to without sharing its boundary.

865 Area code 865

ZIP codes nearest 37774

The ZIP codes whose reference points sit closest to 37774.
ZIP code	Distance	Delivers to
ZIP code 37846	6.1 mi	Philadelphia, TN
ZIP code 37771	7.1 mi	Lenoir City, TN
ZIP code 37772	8.1 mi	Lenoir City, TN
ZIP code 37742	11 mi	Greenback, TN
ZIP code 37874	11 mi	Sweetwater, TN
ZIP code 37763	12 mi	Kingston, TN
ZIP code 37737	13 mi	Friendsville, TN
ZIP code 37934	14 mi	Knoxville, TN

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 37774, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 37774. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.