Gaithersburg zipcode
| City | Gaithersburg |
| ZIP Code | 20879 |
| Type | Standard |
| State Code | MD |
| State | Maryland |
ZIP code of Gaithersburg is 20879. This place is located in Maryland state in US. To send any postal service to Gaithersburg, you must use 20879 zipcode.
The ZIP code 20879 is also used with 2 more city names of Maryland.
- Montgomery Village, MD
- Montgomry Vlg, MD