ZIP Code 37748

37748 is one of Tennessee's ZIP codes, delivering to addresses in Harriman, Roane County.

City: Harriman
County: Roane County
State: Tennessee
Prefix: 377xx

Where this code sits

37748 is part of the 377xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Harriman.

Harriman Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37748 delivers to without sharing its boundary.

ZIP codes nearest 37748

The ZIP codes whose reference points sit closest to 37748.
ZIP code	Distance	Delivers to
ZIP code 37763	5.8 mi	Kingston, TN
ZIP code 37829	6.2 mi	Oakdale, TN
ZIP code 37719	8.4 mi	Coalfield, TN
ZIP code 37854	11 mi	Rockwood, TN
ZIP code 37840	12 mi	Oliver Springs, TN
ZIP code 37887	12 mi	Wartburg, TN
ZIP code 37845	12 mi	Petros, TN
ZIP code 37830	15 mi	Oak Ridge, 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 37748, plotted from its record coordinates.

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

Scope ZIP code 37748. 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.