In which county is ZIP code 20817 located?

ZIP 20817 is listed under Montgomery County, MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 20817: Bethesda, MD

ZIP: 20817

County: Montgomery County

Coordinates: 38.98960, -77.15380

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 20817, serving Bethesda in MD. It lies in Montgomery County and supports delivery, planning, and address verification.

Primary City	Bethesda
ZIP Code	20817
County	Montgomery County
State	MD
Latitude / Longitude	38.98960, -77.15380
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 20817 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 20817 are listed as 38.98960 / -77.15380, useful for GPS and service checks in and around Bethesda, MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 20817 for mail delivery and general location reference in Montgomery County, MD.

This ZIP may extend beyond the city core into nearby communities within Montgomery County.

Related ZIP Codes (Nearby)

Explore other postal codes near Bethesda within MD.

Frequently Asked Questions

What is the primary city for ZIP code 20817?

The primary city for this ZIP code is Bethesda, located in MD.

In which county is 20817 located?

ZIP code 20817 is situated within Montgomery County, MD.

What are the coordinates for 20817?

The approximate center point is 38.98960 (Latitude) and -77.15380 (Longitude).

Is ZIP code 20817 active?

This page lists ZIP 20817 as Listed based on the latest refresh date shown above.

Does ZIP 20817 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08