ZIP Code 37148

37148 is one of Tennessee's ZIP codes, delivering to addresses in Portland, Sumner County.

City: Portland
County: Sumner County
State: Tennessee
Prefix: 371xx

Where this code sits

37148 is part of the 371xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Portland.

Portland Tennessee ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 37148 delivers to without sharing its boundary.

ZIP codes nearest 37148

The ZIP codes whose reference points sit closest to 37148.
ZIP code	Distance	Delivers to
ZIP code 37119	4.8 mi	Mitchellville, TN
ZIP code 37048	7.5 mi	Cottontown, TN
ZIP code 37049	9.5 mi	Cross Plains, TN
ZIP code 37141	11 mi	Orlinda, TN
ZIP code 37022	11 mi	Bethpage, TN
ZIP code 42135	11 mi	Franklin, KY
ZIP code 42134	12 mi	Franklin, KY
ZIP code 37188	12 mi	White House, 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 37148, plotted from its record coordinates.

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

Scope ZIP code 37148. 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.