ZIP Code 37821

37821 is one of Tennessee's ZIP codes, delivering to addresses in Newport, Cocke County.

City: Newport
County: Cocke County
State: Tennessee
Prefix: 378xx

Where this code sits

37821 is part of the 378xx range, the group of codes handled by one mail processing centre. Newport is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Newport page.

Newport Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37821 delivers to without sharing its boundary.

ZIP codes nearest 37821

The ZIP codes whose reference points sit closest to 37821.
ZIP code	Distance	Delivers to
ZIP code 37822	1.2 mi	Newport, TN
ZIP code 37713	6.6 mi	Bybee, TN
ZIP code 37843	7.8 mi	Parrottsville, TN
ZIP code 37722	8.3 mi	Cosby, TN
ZIP code 37890	10 mi	White Pine, TN
ZIP code 37753	11 mi	Hartford, TN
ZIP code 37727	12 mi	Del Rio, TN
ZIP code 37725	13 mi	Dandridge, 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 37821, plotted from its record coordinates.

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

Scope ZIP code 37821. 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.