ZIP Code 21635

21635 is one of Maryland's ZIP codes, delivering to addresses in Galena, Kent County.

City: Galena
County: Kent County
State: Maryland
Prefix: 216xx

Where this code sits

21635 is part of the 216xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Galena.

Galena Maryland ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 21635 delivers to without sharing its boundary.

ZIP codes nearest 21635

The ZIP codes whose reference points sit closest to 21635.
ZIP code	Distance	Delivers to
ZIP code 21930	2.1 mi	Georgetown, MD
ZIP code 21650	3.2 mi	Massey, MD
ZIP code 21913	4.4 mi	Cecilton, MD
ZIP code 21651	4.5 mi	Millington, MD
ZIP code 21645	6.5 mi	Kennedyville, MD
ZIP code 21919	7.2 mi	Earleville, MD
ZIP code 21912	7.4 mi	Warwick, MD
ZIP code 21628	7.7 mi	Crumpton, MD

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 21635, plotted from its record coordinates.

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

Scope ZIP code 21635. 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.