Gaithersburg, MD ZIP Codes

ZIP code, county, time zone and coordinates of Gaithersburg, Maryland

The ZIP code of Gaithersburg, MD is 20877. Gaithersburg has 4 ZIP codes: 20877, 20879, 20880, 20899. It is in Montgomery County.

Mailing address format for Gaithersburg

John Smith
123 Main St
GAITHERSBURG MD 20877
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

All ZIP codes in Gaithersburg

ZIP codePopulationArea
20877—5.6 sq miMain
20879—8.6 sq mi
20880—0.3 sq mi
20899—0.1 sq mi

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

Where is Gaithersburg? Location, county and time zone

State
Maryland
County
Montgomery County
GPS coordinates
39.14860, -77.19513
Elevation
348 ft (106 m)
Time zone
America/New YorkEST · UTC-05:00
Population
69,657

Map of Gaithersburg, MD 20877

Tap a place on the map to see it in Street View below. Map: © OpenStreetMap contributors.

Gaithersburg Street View

Loading Street View…

Drag to look around. Tap any place on the map above, or the "Street View" button on a card, to jump there.

Open in Google Maps ›

ZIP codes near Gaithersburg

Gaithersburg ZIP code: FAQ

What is the ZIP code for Gaithersburg, MD?

The main ZIP code for Gaithersburg, MD is 20877. All ZIP codes: 20877, 20879, 20880, 20899.

How many ZIP codes does Gaithersburg have?

Gaithersburg has 4 ZIP codes.

What county is Gaithersburg, MD in?

Gaithersburg is in Montgomery County, Maryland.

What time zone is Gaithersburg in?

Gaithersburg is in the America/New York time zone (EST, UTC-05:00 right now).

What are the coordinates of Gaithersburg?

Latitude 39.14860, longitude -77.19513.

Last updated: