ZIP Code 37330

37330 is one of Tennessee's ZIP codes, delivering to addresses in Estill Springs, Franklin County.

City: Estill Springs
County: Franklin County
State: Tennessee
Prefix: 373xx

Where this code sits

37330 is part of the 373xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Estill Springs.

Estill Springs Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37330 delivers to without sharing its boundary.

931 Area code 931

ZIP codes nearest 37330

The ZIP codes whose reference points sit closest to 37330.
ZIP code	Distance	Delivers to
ZIP code 37324	5.3 mi	Decherd, TN
ZIP code 37398	6.0 mi	Winchester, TN
ZIP code 37388	7.0 mi	Tullahoma, TN
ZIP code 37306	9.1 mi	Belvidere, TN
ZIP code 37318	9.4 mi	Cowan, TN
ZIP code 37342	12 mi	Hillsboro, TN
ZIP code 37360	13 mi	Normandy, TN
ZIP code 37352	13 mi	Lynchburg, 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 37330, plotted from its record coordinates.

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

Scope ZIP code 37330. 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.