ZIP Code 02558

02558 is one of Massachusetts's ZIP codes, delivering to addresses in Onset, Plymouth County.

City: Onset
County: Plymouth County
State: Massachusetts
Prefix: 025xx

Where this code sits

02558 is part of the 025xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Onset.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 02558 delivers to without sharing its boundary.

ZIP codes nearest 02558

The ZIP codes whose reference points sit closest to 02558.
ZIP code	Distance	Delivers to
ZIP code 02538	1.4 mi	East Wareham, MA
ZIP code 02571	2.8 mi	Wareham, MA
ZIP code 02553	3.1 mi	Monument Beach, MA
ZIP code 02532	3.5 mi	Buzzards Bay, MA
ZIP code 02559	4.8 mi	Pocasset, MA
ZIP code 02534	5.7 mi	Cataumet, MA
ZIP code 02576	5.9 mi	West Wareham, MA
ZIP code 02738	5.9 mi	Marion, MA

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 02558, plotted from its record coordinates.

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

Scope ZIP code 02558. 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.