Gaithersburg, MD ZIP Codes, Coordinates & Counties
Gaithersburg, Maryland has 5 ZIP codes in Montgomery county. The approximate center of Gaithersburg is 39.16, -77.195. Gaithersburg has about 208,728 known street addresses.
ZIP codes in Gaithersburg, MD
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 20877 | Montgomery | 39.141 | -77.188 |
| 20878 | Montgomery | 39.113 | -77.251 |
| 20879 | Montgomery | 39.169 | -77.176 |
| 20882 | Montgomery | 39.233 | -77.145 |
| 20899 | Montgomery | 39.144 | -77.216 |
Counties Gaithersburg spans
Montgomery
Most common streets in Gaithersburg
Summit, W, Quince Orchard, Diamond, Girard, Frederick, Washingtonian, Downing, Marathon, Streamside
Frequently asked questions
What ZIP codes are in Gaithersburg, MD?
Gaithersburg, Maryland has 5 ZIP codes, ranging from 20877 to 20899. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Gaithersburg, MD in?
Gaithersburg is in Montgomery county.
What are the latitude and longitude of Gaithersburg, MD?
The approximate center of Gaithersburg, Maryland is latitude 39.16, longitude -77.195. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Gaithersburg, MD have?
Gaithersburg has 5 ZIP codes.
How many addresses are in Gaithersburg, MD?
Gaithersburg, Maryland has about 208,728 known street addresses in the sthan.io US address database.
What are the most common streets in Gaithersburg, MD?
Some of the most common street names in Gaithersburg are Summit, W, Quince Orchard, Diamond, Girard, Frederick.
What cities are near Gaithersburg, MD?
Cities near Gaithersburg include Montgomery Village (1 mi), Washington Grove (2 mi), Derwood (4 mi), Germantown (4 mi), Rockville (6 mi).
Cities near Gaithersburg
Montgomery Village, MD (1 mi) Washington Grove, MD (2 mi) Derwood, MD (4 mi) Germantown, MD (4 mi) Rockville, MD (6 mi) Boyds, MD (7 mi) Olney, MD (7 mi) Brookeville, MD (8 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database