ZIP Code 21609

21609 is one of Maryland's ZIP codes, delivering to addresses in Bethlehem, Caroline County.

City: Bethlehem
County: Caroline County
State: Maryland
Prefix: 216xx

Where this code sits

21609 is part of the 216xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bethlehem.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 21609 delivers to without sharing its boundary.

ZIP codes nearest 21609

The ZIP codes whose reference points sit closest to 21609.
ZIP code	Distance	Delivers to
ZIP code 21655	2.3 mi	Preston, MD
ZIP code 21601	6.8 mi	Easton, MD
ZIP code 21673	7.2 mi	Trappe, MD
ZIP code 21643	8.4 mi	Hurlock, MD
ZIP code 21664	9.1 mi	Secretary, MD
ZIP code 21625	9.3 mi	Cordova, MD
ZIP code 21632	10 mi	Federalsburg, MD
ZIP code 21631	10 mi	East New Market, 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 21609, plotted from its record coordinates.

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

Scope ZIP code 21609. 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.