ZIP Code 02638

02638 is one of Massachusetts's ZIP codes, delivering to addresses in Dennis, Barnstable County.

City: Dennis
County: Barnstable County
State: Massachusetts
Prefix: 026xx

Where this code sits

02638 is part of the 026xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dennis.

Dennis Massachusetts ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 02638 delivers to without sharing its boundary.

ZIP codes nearest 02638

The ZIP codes whose reference points sit closest to 02638.
ZIP code	Distance	Delivers to
ZIP code 02641	1.7 mi	East Dennis, MA
ZIP code 02660	2.3 mi	South Dennis, MA
ZIP code 02675	2.6 mi	Yarmouth Port, MA
ZIP code 02664	4.0 mi	South Yarmouth, MA
ZIP code 02637	4.9 mi	Cummaquid, MA
ZIP code 02670	5.0 mi	West Dennis, MA
ZIP code 02673	5.4 mi	West Yarmouth, MA
ZIP code 02639	5.5 mi	Dennis Port, 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 02638, plotted from its record coordinates.

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

Scope ZIP code 02638. 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.