ZIP Code 21865

21865 is one of Maryland's ZIP codes, delivering to addresses in Tyaskin, Wicomico County.

City: Tyaskin
County: Wicomico County
State: Maryland
Prefix: 218xx

Where this code sits

21865 is part of the 218xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Tyaskin.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 21865 delivers to without sharing its boundary.

ZIP codes nearest 21865

The ZIP codes whose reference points sit closest to 21865.
ZIP code	Distance	Delivers to
ZIP code 21814	2.6 mi	Bivalve, MD
ZIP code 21840	3.2 mi	Nanticoke, MD
ZIP code 21856	4.8 mi	Quantico, MD
ZIP code 21810	8.6 mi	Allen, MD
ZIP code 21853	9.9 mi	Princess Anne, MD
ZIP code 21821	11 mi	Deal Island, MD
ZIP code 21822	11 mi	Eden, MD
ZIP code 21627	12 mi	Crocheron, 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 21865, plotted from its record coordinates.

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

Scope ZIP code 21865. 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.