ZIP Code 37663

37663 is one of Tennessee's ZIP codes, delivering to addresses in Kingsport, Sullivan County.

City: Kingsport
County: Sullivan County
State: Tennessee
Prefix: 376xx

Where this code sits

37663 is part of the 376xx range, the group of codes handled by one mail processing centre. Kingsport is served by 6 ZIP codes in total; the full list, with the county each falls in, is on the Kingsport page.

Kingsport Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37663 delivers to without sharing its boundary.

ZIP codes nearest 37663

The ZIP codes whose reference points sit closest to 37663.
ZIP code	Distance	Delivers to
ZIP code 37664	3.9 mi	Kingsport, TN
ZIP code 37615	5.3 mi	Johnson City, TN
ZIP code 37660	6.9 mi	Kingsport, TN
ZIP code 37662	6.9 mi	Kingsport, TN
ZIP code 37669	6.9 mi	Kingsport, TN
ZIP code 37617	7.9 mi	Blountville, TN
ZIP code 37686	8.5 mi	Piney Flats, TN
ZIP code 37656	8.8 mi	Fall Branch, 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 37663, plotted from its record coordinates.

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

Scope ZIP code 37663. 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.