ZIP Code 01890

01890 is one of Massachusetts's ZIP codes, delivering to addresses in Winchester, Middlesex County.

City: Winchester
County: Middlesex County
State: Massachusetts
Prefix: 018xx

Where this code sits

01890 is part of the 018xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Winchester.

Winchester Massachusetts ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01890 delivers to without sharing its boundary.

ZIP codes nearest 01890

The ZIP codes whose reference points sit closest to 01890.
ZIP code	Distance	Delivers to
ZIP code 01813	1.9 mi	Woburn, MA
ZIP code 01815	1.9 mi	Woburn, MA
ZIP code 01888	1.9 mi	Woburn, MA
ZIP code 01801	2.2 mi	Woburn, MA
ZIP code 02156	2.2 mi	West Medford, MA
ZIP code 02474	2.4 mi	Arlington, MA
ZIP code 02475	2.9 mi	Arlington Heights, MA
ZIP code 02476	3.0 mi	Arlington, 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 01890, plotted from its record coordinates.

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

Scope ZIP code 01890. 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.