ZIP Code 01203

01203 is one of Massachusetts's ZIP codes, delivering to addresses in Pittsfield, Berkshire County.

City: Pittsfield
County: Berkshire County
State: Massachusetts
Prefix: 012xx

Where this code sits

01203 is part of the 012xx range, the group of codes handled by one mail processing centre. Pittsfield is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Pittsfield page.

Pittsfield Massachusetts ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01203 delivers to without sharing its boundary.

413 Area code 413

ZIP codes nearest 01203

The ZIP codes whose reference points sit closest to 01203.
ZIP code	Distance	Delivers to
ZIP code 01202	0.0 mi	Pittsfield, MA
ZIP code 01263	0.0 mi	Stockbridge, MA
ZIP code 01240	3.0 mi	Lenox, MA
ZIP code 01242	3.9 mi	Lenox Dale, MA
ZIP code 01201	4.3 mi	Pittsfield, MA
ZIP code 01223	6.0 mi	Becket, MA
ZIP code 01227	6.4 mi	Dalton, MA
ZIP code 01238	6.5 mi	Lee, 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 01203, plotted from its record coordinates.

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

Scope ZIP code 01203. 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.