ZIP Code 37308

37308 is one of Tennessee's ZIP codes, delivering to addresses in Birchwood, Hamilton County.

City: Birchwood
County: Hamilton County
State: Tennessee
Prefix: 373xx

Where this code sits

37308 is part of the 373xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Birchwood.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37308 delivers to without sharing its boundary.

ZIP codes nearest 37308

The ZIP codes whose reference points sit closest to 37308.
ZIP code	Distance	Delivers to
ZIP code 37336	4.9 mi	Georgetown, TN
ZIP code 37373	8.3 mi	Sale Creek, TN
ZIP code 37304	9.9 mi	Bakewell, TN
ZIP code 37321	11 mi	Dayton, TN
ZIP code 37312	12 mi	Cleveland, TN
ZIP code 37309	13 mi	Calhoun, TN
ZIP code 37310	13 mi	Charleston, TN
ZIP code 37379	13 mi	Soddy Daisy, 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 37308, plotted from its record coordinates.

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

Scope ZIP code 37308. 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.