ZIP Code 01571

01571 is one of Massachusetts's ZIP codes, delivering to addresses in Dudley, Worcester County.

City: Dudley
County: Worcester County
State: Massachusetts
Prefix: 015xx

Where this code sits

01571 is part of the 015xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dudley.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01571 delivers to without sharing its boundary.

ZIP codes nearest 01571

The ZIP codes whose reference points sit closest to 01571.
ZIP code	Distance	Delivers to
ZIP code 01570	2.3 mi	Webster, MA
ZIP code 06262	3.0 mi	Quinebaug, CT
ZIP code 06245	3.2 mi	Fabyan, CT
ZIP code 01540	4.6 mi	Oxford, MA
ZIP code 06255	4.9 mi	North Grosvenordale, CT
ZIP code 06246	5.4 mi	Grosvenor Dale, CT
ZIP code 06277	5.5 mi	Thompson, CT
ZIP code 06244	6.3 mi	East Woodstock, CT

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 01571, plotted from its record coordinates.

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

Scope ZIP code 01571. 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.