In which county is ZIP code 20849 located?

ZIP 20849 is listed under Montgomery County, MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 20849: Rockville, MD

ZIP: 20849

County: Montgomery County

Coordinates: 39.08400, -77.15280

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Rockville, MD postal area 20849. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Rockville
ZIP Code	20849
County	Montgomery County
State	MD
Latitude / Longitude	39.08400, -77.15280
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 20849 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 20849 is commonly represented around 39.08400, -77.15280. These coordinates help identify the general area within Montgomery County, MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 20849 for mail delivery and general location reference in Montgomery County, MD.

Some addresses near Rockville may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Rockville within MD.

Frequently Asked Questions

What is the primary city for ZIP code 20849?

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

In which county is 20849 located?

ZIP code 20849 is situated within Montgomery County, MD.

What are the coordinates for 20849?

The approximate center point is 39.08400 (Latitude) and -77.15280 (Longitude).

Is ZIP code 20849 active?

This page lists ZIP 20849 as Listed based on the latest refresh date shown above.

Does ZIP 20849 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