ZIP Code 20670

20670 is one of Maryland's ZIP codes, delivering to addresses in Patuxent River, St. Mary's County.

City: Patuxent River
County: St. Mary's County
State: Maryland
Prefix: 206xx

Where this code sits

20670 is part of the 206xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Patuxent River.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 20670 delivers to without sharing its boundary.

ZIP codes nearest 20670

The ZIP codes whose reference points sit closest to 20670.
ZIP code	Distance	Delivers to
ZIP code 20653	2.2 mi	Lexington Park, MD
ZIP code 20634	3.2 mi	Great Mills, MD
ZIP code 20688	3.8 mi	Solomons, MD
ZIP code 20629	4.0 mi	Dowell, MD
ZIP code 20667	4.3 mi	Park Hall, MD
ZIP code 20619	5.3 mi	California, MD
ZIP code 20620	5.7 mi	Callaway, MD
ZIP code 20657	6.0 mi	Lusby, 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 20670, plotted from its record coordinates.

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

Scope ZIP code 20670. 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.