Washington Grove is a town in Montgomery County, Maryland, home to about 577 people across 0.3 square miles. Its ZIP code is 20880.
Homes sold for a median of $442 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Washington Grove. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Washington Dulles International Airport (IAD)20 miles away |
|---|---|
| Nearest city of 250,000+ | Washington, DC18 miles away |
| Nearest city of 1 million+ | Philadelphia, PA124 miles away |
Straight-line distances from the center of Washington Grove; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Washington Grove had 505 residents in the 2020 census, down 2% since 2000.
It’s the 373rd largest of 527 towns in Maryland by population.
Montgomery County grew from 30,451 residents in 1900 to 1,062,061 in 2020.
Montgomery County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 27°F. About 41.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Rockville 1 Ne, MD weather station (3 miles away).
439,792 jobs at 27,677 businesses in Montgomery County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Washington Grove.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (18 nearby)
Grocery stores (2 nearby)
Pharmacies
Libraries
Museums
Theaters and performance venues
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.