ZIP Code 37650

37650 is one of Tennessee's ZIP codes, delivering to addresses in Erwin, Unicoi County.

City: Erwin
County: Unicoi County
State: Tennessee
Prefix: 376xx

Where this code sits

37650 is part of the 376xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Erwin.

Erwin Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37650 delivers to without sharing its boundary.

ZIP codes nearest 37650

The ZIP codes whose reference points sit closest to 37650.
ZIP code	Distance	Delivers to
ZIP code 37692	7.3 mi	Unicoi, TN
ZIP code 37614	8.3 mi	Johnson City, TN
ZIP code 37690	10 mi	Telford, TN
ZIP code 37602	11 mi	Johnson City, TN
ZIP code 37659	12 mi	Jonesborough, TN
ZIP code 37657	12 mi	Flag Pond, TN
ZIP code 37604	12 mi	Johnson City, TN
ZIP code 37684	12 mi	Mountain Home, 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 37650, plotted from its record coordinates.

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

Scope ZIP code 37650. 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.