ZIP Code 01077

01077 is one of Massachusetts's ZIP codes, delivering to addresses in Southwick, Hampden County.

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

Where this code sits

01077 is part of the 010xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Southwick.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01077 delivers to without sharing its boundary.

413 Area code 413

ZIP codes nearest 01077

The ZIP codes whose reference points sit closest to 01077.
ZIP code	Distance	Delivers to
ZIP code 06093	3.3 mi	West Suffield, CT
ZIP code 06060	4.1 mi	North Granby, CT
ZIP code 01030	5.1 mi	Feeding Hills, MA
ZIP code 01085	5.2 mi	Westfield, MA
ZIP code 06035	6.5 mi	Granby, CT
ZIP code 01071	7.5 mi	Russell, MA
ZIP code 01001	7.7 mi	Agawam, MA
ZIP code 06080	7.8 mi	Suffield, 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 01077, plotted from its record coordinates.

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

Scope ZIP code 01077. 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.