ZIP code 20879
Where is ZIP code 20879?
Gaithersburg, Maryland
Montgomery County · Standard ZIP code
ZIP code 20879 belongs to Gaithersburg, Maryland in Montgomery County. 20879 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 227, 240 and 301. About 25,264 people live in the 20879 area, where the median household income is $112,104. The closest ZIP codes are 20886 (Montgomery Village, 0.2 mi northwest), 20885 (Gaithersburg, 1.4 mi northwest) and 20877 (Gaithersburg, 2.2 mi south).
| ZIP code | 20879 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Gaithersburg |
| Also accepted | Montgomery Village, Montgomry Vlg |
| State | Maryland (MD) |
| County | Montgomery County |
| Time zone | Eastern Time · now |
| Area codes | 227, 240, 301 |
| Coordinates | 39.173, -77.1855 map |
| 3-digit prefix | 208 |
Population and income in 20879
| Population | 25,264 · higher than 78% of Maryland ZIP codes |
|---|---|
| People per square mile | 2,932 · higher than 82% of Maryland ZIP codes |
| Median age | 36.4 years · lower than 82% of Maryland ZIP codes |
| Men / women | 48% / 52% |
| Median household income | $112,104 · higher than 54% of Maryland ZIP codes |
| Income per person | $48,025 |
| Below the poverty line | 7.5% |
| Bachelor’s degree or higher | 45% of adults 25+ |
| Median home value | $468,100 · higher than 63% of Maryland ZIP codes |
| Median rent | $1,942 a month |
| Housing units | 8,818 |
| Households | 8,651 (2.91 people on average) |
| Owners / renters | 70% / 30% |
| Land area | 8.62 sq mi (plus 0.05 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 20879. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 20879
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 20886 | Montgomery Village, MD | 0.2 mi NW | Standard |
| 20885 | Gaithersburg, MD | 1.4 mi NW | PO Box only |
| 20877 | Gaithersburg, MD | 2.2 mi S | Standard |
| 20813 | Bethesda, MD | 2.3 mi SW | PO Box only |
| 20827 | Bethesda, MD | 2.3 mi SW | PO Box only |
| 20848 | Rockville, MD | 2.3 mi SW | PO Box only |
| 20859 | Potomac, MD | 2.3 mi SW | PO Box only |
| 20875 | Germantown, MD | 2.3 mi SW | PO Box only |
| 20884 | Gaithersburg, MD | 2.3 mi SW | PO Box only |
| 20889 | Bethesda, MD | 2.3 mi SW | Unique |
| 20894 | Bethesda, MD | 2.3 mi SW | Unique |
| 20898 | Gaithersburg, MD | 2.3 mi SW | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20879 or measure the distance to another ZIP code.
How to address mail to 20879
123 MAIN ST
GAITHERSBURG MD 20879
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts MONTGOMERY VILLAGE and MONTGOMRY VLG as the city name for 20879. Adding the 4-digit ZIP+4 code (20879-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Gaithersburg, MD
All Gaithersburg ZIP codes with population and income →
Questions
- What city is ZIP code 20879?
- 20879 is a Gaithersburg, Maryland ZIP code. Montgomery Village and Montgomry Vlg are also accepted as the city name.
- What county is 20879 in?
- ZIP code 20879 is in Montgomery County, Maryland.
- What time zone is ZIP code 20879 in?
- 20879 is in the Eastern Time zone (America/New_York).
- What area code is 20879?
- Phone numbers in ZIP code 20879 use area codes 227, 240 and 301.
- What is the population of ZIP code 20879?
- About 25,264 people live in ZIP code 20879, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 20879?
- The median household income in 20879 is $112,104 a year, higher than 54% of Maryland ZIP codes.
- What ZIP codes are near 20879?
- The nearest ZIP codes to 20879 are 20886 (Montgomery Village, 0.2 miles), 20885 (Gaithersburg, 1.4 miles), 20877 (Gaithersburg, 2.2 miles) and 20813 (Bethesda, 2.3 miles).