Adelphi
Census-designated place in Prince George's County, Maryland

Adelphi is an unincorporated community (census-designated place) in Prince George's County, Maryland, with 16,823 residents (2020 Census). It sits at 171 ft (52 m) above sea level. The nearest town is Langley Park, 0.9 miles SW.
- 16,823residents (2020 Census)
- 171 ftelevation · 52 m
- 2.7 sq miland area · 7.1 km²
- 6,177 / sq mipopulation density
- 20783main ZIP code (3 in total)
About Adelphi
Adelphi is an unincorporated area and census-designated place in Prince George's County, Maryland, United States. Per the 2020 Census, the population was 16,823. Adelphi includes the following subdivisions; Adelphi, Adelphi Park, Adelphi Hills, Adelphi Terrace, Adelphi Village, Buck Lodge, Chatham, Cool Spring Terrace, Hillandale Forest, Holly Hill Manor, Knollwood, Lewisdale, and White Oak Manor.
Text: Wikipedia · CC BY-SA 4.0
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Living in Adelphi
- Median household income
- $82,137
- Median home value
- $425,200
- Median rent
- $1,804/mo
- Median age
- 33.9
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Map of Adelphi
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Open in Google Maps ›Adelphi, MD population
Adelphi had 16,823 residents in the 2020 Census.
| 2020 Census | 16,823 |
|---|---|
| Density | 6,177 per sq mi (2,385 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Adelphi at a glance
| State | Maryland (MD) |
|---|---|
| County | Prince George's County |
| Type | Census-designated place |
| Population | 16,823 (2020) |
| Land area | 2.72 sq mi (7.1 km²) |
| Water area | 0.00 sq mi (0.01 km²) |
| Elevation | 171 ft (52 m) |
| Coordinates | 38.9972° N, 76.9669° W |
| ZIP codes | 20783, 20742, 20903 |
| Census code (GEOID) | 2400400 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Adelphi
- Langley Park0.9 mi SW
- College Park1.6 mi E
- Hillandale2.1 mi N
- University Park2.1 mi SE
- Chillum2.2 mi S
- Takoma Park2.2 mi SW
- Hyattsville2.6 mi S
- Berwyn Heights2.9 mi E
- Silver Spring2.9 mi W
- Four Corners2.9 mi NW
- Riverdale Park3.0 mi SE
- Burnt Mills3.1 mi NW
Straight-line distance between town centers.
Frequently asked questions about Adelphi
What county is Adelphi in?
Adelphi is in Prince George's County, Maryland.
What is the population of Adelphi, MD?
16,823 people lived in Adelphi at the 2020 Census.
What is the ZIP code of Adelphi, MD?
The main ZIP code is 20783. Other ZIP codes: 20742, 20903.
What is the elevation of Adelphi?
171 feet (52 m) above sea level.
What towns are near Adelphi?
Langley Park (0.9 mi), College Park (1.6 mi), Hillandale (2.1 mi), University Park (2.1 mi), Chillum (2.2 mi).
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