ZIP Code 20817

20817 is one of Maryland's ZIP codes, delivering to addresses in Bethesda, Montgomery County.

City: Bethesda
County: Montgomery County
State: Maryland
Prefix: 208xx

Where this code sits

20817 is part of the 208xx range, the group of codes handled by one mail processing centre. Bethesda is served by 11 ZIP codes in total; the full list, with the county each falls in, is on the Bethesda page.

Bethesda Maryland ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 20817 delivers to without sharing its boundary.

ZIP codes nearest 20817

The ZIP codes whose reference points sit closest to 20817.
ZIP code	Distance	Delivers to
ZIP code 20818	1.1 mi	Cabin John, MD
ZIP code 20812	1.5 mi	Glen Echo, MD
ZIP code 20892	2.8 mi	Bethesda, MD
ZIP code 20814	2.9 mi	Bethesda, MD
ZIP code 20810	2.9 mi	Bethesda, MD
ZIP code 20811	2.9 mi	Bethesda, MD
ZIP code 20824	2.9 mi	Bethesda, MD
ZIP code 20816	3.0 mi	Bethesda, 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 20817, plotted from its record coordinates.

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

Scope ZIP code 20817. 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.