ZIP Code 37309

37309 is one of Tennessee's ZIP codes, delivering to addresses in Calhoun, McMinn County.

City: Calhoun
County: McMinn County
State: Tennessee
Prefix: 373xx

Where this code sits

37309 is part of the 373xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Calhoun.

Calhoun Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37309 delivers to without sharing its boundary.

ZIP codes nearest 37309

The ZIP codes whose reference points sit closest to 37309.
ZIP code	Distance	Delivers to
ZIP code 37370	4.2 mi	Riceville, TN
ZIP code 37310	4.9 mi	Charleston, TN
ZIP code 37325	8.7 mi	Delano, TN
ZIP code 37336	10 mi	Georgetown, TN
ZIP code 37312	10 mi	Cleveland, TN
ZIP code 37307	11 mi	Benton, TN
ZIP code 37371	12 mi	Athens, TN
ZIP code 37331	12 mi	Etowah, 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 37309, plotted from its record coordinates.

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

Scope ZIP code 37309. 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.