ZIP Code 01378

01378 is one of Massachusetts's ZIP codes, delivering to addresses in Warwick, Franklin County.

City: Warwick
County: Franklin County
State: Massachusetts
Prefix: 013xx

Where this code sits

01378 is part of the 013xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Warwick.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01378 delivers to without sharing its boundary.

ZIP codes nearest 01378

The ZIP codes whose reference points sit closest to 01378.
ZIP code	Distance	Delivers to
ZIP code 01364	4.5 mi	Orange, MA
ZIP code 01360	5.8 mi	Northfield, MA
ZIP code 01344	6.1 mi	Erving, MA
ZIP code 01368	7.3 mi	Royalston, MA
ZIP code 01331	7.6 mi	Athol, MA
ZIP code 01379	7.7 mi	Wendell, MA
ZIP code 03470	7.7 mi	Winchester, NH
ZIP code 01380	8.3 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 01378, plotted from its record coordinates.

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

Scope ZIP code 01378. 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.