Explore Adelphi, Maryland, with this interactive street and satellite map.
This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.
This interactive map shows the street layout and satellite imagery for Adelphi, Maryland. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of Maryland or beyond.
Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to Adelphi.
Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.
Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.
| City | Adelphi |
| State | Maryland (MD) |
| County | Prince George's County |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 39.003166 |
| Longitude | -76.97192 |
| Population | 16,823 |
| Density | 2391.5 /km² |
| Incorporated | N/A |
| ZIP Code | 20783 |
| Area Code | 301, 240 |
| County Seat | Upper Marlboro |
| School District | Prince George's County Public Schools |
Adelphi maintains a quiet presence upon the landscape, defined by the gentle rise and fall of terrain that stretches toward the distant Appalachian Mountains visible on the horizon. It lies 1.1 miles north-northeast of Langley Park, MD (from Langley Park, MD: bearing 27°T), and is situated 8.2 miles north-northeast of Washington. The Northwest Branch Anacostia River carves a path through the woodland just a mile away, its steady movement providing a constant, low-frequency rhythm to the surrounding woods. Residents often find solace at Adelphi Park, where the canopy softens the afternoon light into a muted, verdant glow that settles over the grass. Further afield, the waters of Lake Artemesia offer a reflective surface for the sky, while the paths near Soapstone Valley invite a slow, deliberate pace for those who walk them. The air here holds the scent of damp earth and seasonal change, grounding the spirit in the simple reality of the inland soil.
Adelphi carries a history of steady development, growing from rural roots into a place defined by its proximity to the intellectual and administrative life of the region. The local economy finds its strength in the academic and scientific institutions that anchor the surrounding corridor, drawing a diverse population that contributes to the area’s persistent vitality. Small businesses and professional services operate within the community, supporting a workforce that values stability and the methodical progress of daily labor. Over the years, the character of the economy has shifted to accommodate changing needs, yet it retains a focus on service, education, and research that keeps the local pulse steady. This pragmatic approach to industry ensures that Adelphi remains a reliable center for those who live and work within its borders.
The cultural fabric of Adelphi reflects a mosaic of backgrounds, manifesting in a variety of neighborhood traditions and a shared appreciation for the quietude of suburban life. While there are few monuments to grand figures, the spirit of the place is embodied by the residents who gather for community events or utilize the nearby White Horse Trail for recreation. Notable individuals like the journalist and author Carl Bernstein have spent time in this vicinity, their presence adding a layer of intellectual history to the local narrative. The architecture remains unassuming, favoring functional design that blends into the wooded surroundings rather than demanding attention. Whether one is passing through or settling into the rhythm of the day, Adelphi reveals itself not through spectacle, but through the enduring, unpretentious interactions of its people.
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This page provides an embedded street and satellite map of Adelphi, Maryland. Coordinates: 39.003166, -76.97192. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for Adelphi includes the ZIP code (20783), telephone area code (301, 240), county seat of Prince George's County (Upper Marlboro), and school district assignment (Prince George's County Public Schools).
Search Maps opens a second, independent map. It searches OpenStreetMap for any US town, county or landmark by name; offers USGS topographic maps and USGS aerial imagery as base layers; overlays a labelled U.S. National Grid (USNG) so the map can be read like a printed topographic quad; measures distance and grid, true and magnetic bearings between any two points; and takes a single GPS fix reporting your position as a USNG grid reference and as latitude and longitude. Map tiles require cell coverage, but a GPS position does not, so the coordinates remain correct even where the map cannot load.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | September 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Map layers | Google Maps; © OpenStreetMap contributors; USGS The National Map topographic and aerial imagery (public domain); magnetic declination from NOAA NCEI (World Magnetic Model) |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |