ZIP Code 37681

37681 is one of Tennessee's ZIP codes, delivering to addresses in Limestone, Washington County.

City: Limestone
County: Washington County
State: Tennessee
Prefix: 376xx

Where this code sits

37681 is part of the 376xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Limestone.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37681 delivers to without sharing its boundary.

ZIP codes nearest 37681

The ZIP codes whose reference points sit closest to 37681.
ZIP code	Distance	Delivers to
ZIP code 37641	3.7 mi	Chuckey, TN
ZIP code 37690	4.9 mi	Telford, TN
ZIP code 37602	7.0 mi	Johnson City, TN
ZIP code 37616	7.1 mi	Afton, TN
ZIP code 37614	7.5 mi	Johnson City, TN
ZIP code 37659	8.0 mi	Jonesborough, TN
ZIP code 37745	11 mi	Greeneville, TN
ZIP code 37656	11 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 37681, plotted from its record coordinates.

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

Scope ZIP code 37681. 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.