ZIP Code 21077

21077 is one of Maryland's ZIP codes, delivering to addresses in Harmans, Anne Arundel County.

City: Harmans
County: Anne Arundel County
State: Maryland
Prefix: 210xx

Where this code sits

21077 is part of the 210xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Harmans.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 21077 delivers to without sharing its boundary.

ZIP codes nearest 21077

The ZIP codes whose reference points sit closest to 21077.
ZIP code	Distance	Delivers to
ZIP code 21076	1.3 mi	Hanover, MD
ZIP code 21240	1.9 mi	Baltimore, MD
ZIP code 21144	2.0 mi	Severn, MD
ZIP code 21061	3.7 mi	Glen Burnie, MD
ZIP code 21090	4.0 mi	Linthicum Heights, MD
ZIP code 20755	4.4 mi	Fort George G Meade, MD
ZIP code 21075	4.5 mi	Elkridge, MD
ZIP code 20794	5.1 mi	Jessup, 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 21077, plotted from its record coordinates.

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

Scope ZIP code 21077. 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.