Glassmanor is a community in Prince George's County, Maryland, home to about 16,981 people across 2.3 square miles. Its ZIP code is 20745.
Homes sold for a median of $271 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Glassmanor; also National Harbor and Oxon Hill
Each card is that ZIP code’s whole market, including any part outside Glassmanor. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Glassmanor’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Ronald Reagan Washington National Airport (DCA)4 miles away |
|---|---|
| Nearest city of 250,000+ | Washington, DC7 miles away |
| Nearest city of 1 million+ | Philadelphia, PA129 miles away |
Straight-line distances from the center of Glassmanor; 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.
Glassmanor had 18,430 residents in the 2020 census, up 7% since 2010.
It’s the 88th largest of 527 towns in Maryland by population.
Prince George's County grew from 29,898 residents in 1900 to 967,201 in 2020.
Prince George's County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 27°F. About 47.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Oxon Hill, MD weather station (about a mile away).
276,055 jobs at 16,350 businesses in Prince George's County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
277 doctors and other health care providers list an office in Glassmanor.
Nearest hospitals
Providers with an office here
| Primary care doctors | 19 |
|---|---|
| Specialist doctors | 54 |
| Dentists | 45 |
| Nurse practitioners and physician assistants | 30 |
| Mental health providers | 76 |
| Physical and occupational therapists | 40 |
| Optometrists | 4 |
| Chiropractors | 9 |
| Pharmacies | 11 |
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 (3 nearby)
Grocery stores (5 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
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.
Public schools here are run by Prince George's County Public Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Barnaby Manor ElementaryOxon Hill | Pre-K–5 | 438 | Public | 1.4 mi |
| Flintstone ElementaryOxon Hill | Pre-K–5 | 367 | Public | 0.4 mi |
| Forest Heights ElementaryOxon Hill | Pre-K–5 | 215 | Public | 0.8 mi |
| John Hanson MontessoriOxon Hill | Pre-K–8 | 496 | Public | 0.6 mi |
| Oxon Hill ElementaryOxon Hill | Pre-K–5 | 215 | Public | 1.9 mi |
| Prekindergarten OffsitesOxon Hill | Pre-K | 15 | Public | 0.7 mi |
| Valley View ElementaryOxon Hill | Pre-K–5 | 351 | Public | 0.7 mi |
| Glassmanor ElementaryOxon Hill | K–5 | 261 | Public | 0.4 mi |
| Oxon Hill HighOxon Hill | 9–12 | 1,562 | Public | 1.0 mi |
| Potomac HighOxon Hill | 9–12 | 1,347 | Public | 1.0 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Columba Catholic SchoolOxon Hill | Pre-K–8 | 178 | Roman Catholic | 1.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with National Harbor, Oxon Hill and Forest Heights.
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.