ZIP Code 01531

01531 is one of Massachusetts's ZIP codes, delivering to addresses in New Braintree, Worcester County.

City: New Braintree
County: Worcester County
State: Massachusetts
Prefix: 015xx

Where this code sits

01531 is part of the 015xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to New Braintree.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01531 delivers to without sharing its boundary.

ZIP codes nearest 01531

The ZIP codes whose reference points sit closest to 01531.
ZIP code	Distance	Delivers to
ZIP code 01094	2.7 mi	Wheelwright, MA
ZIP code 01031	3.6 mi	Gilbertville, MA
ZIP code 01535	4.4 mi	North Brookfield, MA
ZIP code 01068	4.5 mi	Oakham, MA
ZIP code 01074	4.9 mi	South Barre, MA
ZIP code 01037	5.2 mi	Hardwick, MA
ZIP code 01585	5.3 mi	West Brookfield, MA
ZIP code 01005	6.3 mi	Barre, 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 01531, plotted from its record coordinates.

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

Scope ZIP code 01531. 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.