ZIP Code 20911

20911 is one of Maryland's ZIP codes, delivering to addresses in Silver Spring, Montgomery County.

City

Silver Spring

County

Montgomery County

State

Maryland

Prefix

209xx

Where this code sits

20911 is part of the 209xx range, the group of codes handled by one mail processing centre. Silver Spring is served by 16 ZIP codes in total; the full list, with the county each falls in, is on the Silver Spring page.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 20911 delivers to without sharing its boundary.

ZIP codes nearest 20911

The ZIP codes whose reference points sit closest to 20911.
ZIP code	Distance	Delivers to
ZIP code 20907	0.0 mi	Silver Spring, MD
ZIP code 20908	0.0 mi	Silver Spring, MD
ZIP code 20914	0.0 mi	Silver Spring, MD
ZIP code 20915	0.0 mi	Silver Spring, MD
ZIP code 20916	0.0 mi	Silver Spring, MD
ZIP code 20918	0.0 mi	Silver Spring, MD
ZIP code 20997	0.0 mi	Silver Spring, MD
ZIP code 20910	0.7 mi	Silver Spring, 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 20911, plotted from its record coordinates.

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

Scope ZIP code 20911. 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.