ZIP Code 01057

01057 is one of Massachusetts's ZIP codes, delivering to addresses in Monson, Hampden County.

City: Monson
County: Hampden County
State: Massachusetts
Prefix: 010xx

Where this code sits

01057 is part of the 010xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Monson.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01057 delivers to without sharing its boundary.

413 Area code 413

ZIP codes nearest 01057

The ZIP codes whose reference points sit closest to 01057.
ZIP code	Distance	Delivers to
ZIP code 01069	5.2 mi	Palmer, MA
ZIP code 01080	6.0 mi	Three Rivers, MA
ZIP code 01036	6.3 mi	Hampden, MA
ZIP code 01079	6.4 mi	Thorndike, MA
ZIP code 01081	6.5 mi	Wales, MA
ZIP code 01095	6.7 mi	Wilbraham, MA
ZIP code 01010	6.8 mi	Brimfield, MA
ZIP code 01009	7.3 mi	Bondsville, 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 01057, plotted from its record coordinates.

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

Scope ZIP code 01057. 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.