ZIP Code 21677

21677 is one of Maryland's ZIP codes, delivering to addresses in Woolford, Dorchester County.

City: Woolford
County: Dorchester County
State: Maryland
Prefix: 216xx

Where this code sits

21677 is part of the 216xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Woolford.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 21677 delivers to without sharing its boundary.

ZIP codes nearest 21677

The ZIP codes whose reference points sit closest to 21677.
ZIP code	Distance	Delivers to
ZIP code 21648	3.6 mi	Madison, MD
ZIP code 21622	5.2 mi	Church Creek, MD
ZIP code 21669	6.7 mi	Taylors Island, MD
ZIP code 21613	6.7 mi	Cambridge, MD
ZIP code 21835	12 mi	Linkwood, MD
ZIP code 21626	13 mi	Crapo, MD
ZIP code 21634	13 mi	Fishing Creek, MD
ZIP code 21654	13 mi	Oxford, 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 21677, plotted from its record coordinates.

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

Scope ZIP code 21677. 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.