Poolesville is a town in Montgomery County, Maryland, home to about 5,764 people across 3.9 square miles. Its ZIP code is 20837.
Homes sold for a median of $243 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Poolesville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Poolesville’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Washington Dulles International Airport (IAD)14 miles away |
|---|---|
| Nearest city of 250,000+ | Washington, DC26 miles away |
| Nearest city of 1 million+ | Philadelphia, PA135 miles away |
Straight-line distances from the center of Poolesville; 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.
Poolesville had 5,742 residents in the 2020 census, up 11% since 2000.
It’s the 187th 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 84°F in summer, and winter lows average 25°F. About 48 inches of rain and melted snow fall in a typical year, with about 31 inches of snow.
Source: NOAA 1991–2020 climate normals, Damascus 3 Ssw, MD weather station (13 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).
21 doctors and other health care providers list an office in Poolesville.
Nearest hospitals
Providers with an office here
| Primary care doctors | 3 |
|---|---|
| Specialist doctors | 1 |
| Dentists | 1 |
| Nurse practitioners and physician assistants | 3 |
| Mental health providers | 10 |
| Physical and occupational therapists | 2 |
| Optometrists | 1 |
| Pharmacies | 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)
Libraries (1 nearby)
Museums
Counts are within about 1.5 miles 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.
Established in 1760.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Montgomery County Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Poolesville ElementaryPoolesville | K–5 | 576 | Public | 0.4 mi |
| John Poole MiddlePoolesville | 6–8 | 467 | Public | 0.9 mi |
| Poolesville HighPoolesville | 9–12 | 1,351 | Public | 0.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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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.