Adelphi is a community in Prince George's County, Maryland, home to about 17,395 people across 2.7 square miles. It has no ZIP code of its own: it’s part of 20782 and 20783.
Homes sold for a median of $255 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly Chillum; part is in Adelphi
Mostly Langley Park; part is in Adelphi
Each card is that ZIP code’s whole market, including any part outside Adelphi. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Adelphi’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)11 miles away |
|---|---|
| Nearest city of 250,000+ | Washington, DC7 miles away |
| Nearest city of 1 million+ | Philadelphia, PA120 miles away |
Straight-line distances from the center of Adelphi; 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.
Adelphi had 16,823 residents in the 2020 census, up 12% since 2000.
It’s the 82nd 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 87°F in summer, and winter lows average 25°F. About 44 inches of rain and melted snow fall in a typical year, with about 16 inches of snow.
Source: NOAA 1991–2020 climate normals, Beltsville, MD weather station (3 miles 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).
438 doctors and other health care providers list an office in Adelphi’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 44 |
|---|---|
| Specialist doctors | 27 |
| Dentists | 59 |
| Nurse practitioners and physician assistants | 47 |
| Mental health providers | 143 |
| Physical and occupational therapists | 107 |
| Optometrists | 4 |
| Chiropractors | 7 |
| Pharmacies | 21 |
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 (8 nearby)
Grocery stores (11 nearby)
Pharmacies (5 nearby)
Libraries (2 nearby)
Museums
Theaters and performance venues (1 nearby)
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.
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 |
|---|---|---|---|---|
| Adelphi ElementaryAdelphi | Pre-K–5 | 505 | Public | 0.7 mi |
| Cherokee Lane ElementaryAdelphi | Pre-K–5 | 863 | Public | 1.2 mi |
| Chillum ElementaryHyattsville | Pre-K–5 | 308 | Public | 2.8 mi |
| Cool Spring ElementaryAdelphi | Pre-K–5 | 458 | Public | 0.4 mi |
| Edward M. Felegy ESHyattsville | Pre-K–5 | 641 | Public | 2.3 mi |
| Langley Park-McCormick ElementaryHyattsville | Pre-K–5 | 697 | Public | 0.6 mi |
| Lewisdale ElementaryHyattsville | Pre-K–5 | 533 | Public | 1.6 mi |
| Mary Harris Mother Jones ElemAdelphi | Pre-K–5 | 734 | Public | 0.3 mi |
| Ridgecrest ElementaryHyattsville | Pre-K–5 | 631 | Public | 2.3 mi |
| Rosa L. Parks ElementaryHyattsville | Pre-K–5 | 607 | Public | 2.2 mi |
| University Park ElementaryHyattsville | Pre-K–5 | 538 | Public | 2.4 mi |
| Cesar Chavez ElementaryHyattsville | K–5 | 355 | Public | 2.0 mi |
| Buck Lodge MiddleAdelphi | 6–8 | 1,200 | Public | 1.1 mi |
| Nicholas Orem MiddleHyattsville | 6–8 | 1,007 | Public | 2.4 mi |
| Sonia Sotomayor Middle at AdelphiAdelphi | 6–8 | 1,077 | Public | 0.3 mi |
| Northwestern HighHyattsville | 9–12 | 2,396 | Public | 1.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| George E Peters Adventist SchoolHyattsville | Pre-K–8 | 132 | Seventh-day Adventist | 2.3 mi |
| Silver Oaks Cooperative SchoolAdelphi | K–6 | 82 | Nonsectarian | 2.7 mi |
| The Children's GuildChillum | 2–12 | 96 | Nonsectarian | 2.7 mi |
| Chelsea SchoolHyattsville | 5–12 | 67 | Nonsectarian | 2.3 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 Chillum, Langley Park, Hyattsville, University Park, Hillandale and Beltsville.
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.