ZIP Code 01331

01331 is one of Massachusetts's ZIP codes, delivering to addresses in Athol, Worcester County.

City: Athol
County: Worcester County
State: Massachusetts
Prefix: 013xx

Where this code sits

01331 is part of the 013xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Athol.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01331 delivers to without sharing its boundary.

ZIP codes nearest 01331

The ZIP codes whose reference points sit closest to 01331.
ZIP code	Distance	Delivers to
ZIP code 01364	3.5 mi	Orange, MA
ZIP code 01368	5.5 mi	Royalston, MA
ZIP code 01355	6.9 mi	New Salem, MA
ZIP code 01378	7.6 mi	Warwick, MA
ZIP code 01366	7.6 mi	Petersham, MA
ZIP code 01436	8.2 mi	Baldwinville, MA
ZIP code 01468	8.9 mi	Templeton, MA
ZIP code 01380	8.9 mi	Wendell Depot, 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 01331, plotted from its record coordinates.

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

Scope ZIP code 01331. 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.