ZIP Code 02646

02646 is one of Massachusetts's ZIP codes, delivering to addresses in Harwich Port, Barnstable County.

City: Harwich Port
County: Barnstable County
State: Massachusetts
Prefix: 026xx

Where this code sits

02646 is part of the 026xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Harwich Port.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 02646 delivers to without sharing its boundary.

ZIP codes nearest 02646

The ZIP codes whose reference points sit closest to 02646.
ZIP code	Distance	Delivers to
ZIP code 02671	2.1 mi	West Harwich, MA
ZIP code 02645	2.2 mi	Harwich, MA
ZIP code 02661	2.3 mi	South Harwich, MA
ZIP code 02659	2.6 mi	South Chatham, MA
ZIP code 02639	3.1 mi	Dennis Port, MA
ZIP code 02669	4.3 mi	West Chatham, MA
ZIP code 02670	5.0 mi	West Dennis, MA
ZIP code 02660	5.2 mi	South Dennis, 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 02646, plotted from its record coordinates.

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

Scope ZIP code 02646. 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.