Explore Rosemont, Maryland, with this interactive street and satellite map.
| City | Rosemont |
| State | Maryland (MD) |
| County | Montgomery County |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 39.333729 |
| Longitude | -77.62276 |
| Population | 272 |
| Density | 188.9 /km² |
| Incorporated | Yes |
| ZIP Codes | 21227, 20877, 21758 |
| Area Code | 301, 240, 410, 443 |
| County Seat | Rockville |
| School District | Frederick County Public Schools |
Rosemont occupies a quiet expanse of land where the earth rises and falls in long, rhythmic swells of clay and loam. It lies 1.3 miles south-southeast of Gaithersburg, MD (from Gaithersburg, MD: bearing 147°T), and is situated 3.3 miles east-southeast of Montgomery. The Muddy Branch carves a persistent, winding path through the landscape, its waters feeding the moisture that keeps the surrounding woodlands thick with oak and hickory. To the far west, the Blue Ridge Mountains etch a jagged, violet line against the evening sky, a distant reminder of the rugged spine that holds this region in place. Within the immediate borders, the grounds of Summitt Hall Morris Park provide a sanctuary of open green, where the light at dusk settles heavy and gold upon the tall grasses. The air here holds a crisp, earthen stillness, far removed from the churn of the coast, defined instead by the steady respiration of the inland woods and the cool, shadowed depth of Mather Gorge eleven miles away.
Rosemont maintains a character shaped by the slow, deliberate work of those who first cleared its fields and established its boundaries. The local economy persists in the quiet industry of the interior, favoring the cultivation of the land and the preservation of the open spaces that define its borders. Residents often look toward the Paw Paw Passage Trail for recreation, a path that connects the local experience to the wider geography of the state. Life in Rosemont moves with the sun, from the morning mist lifting off the surface of Lake Halcyon to the long, cooling shadows that stretch from the tree lines as the day concludes. It is a place of modest permanence, where the historical weight of the interior persists in the quiet masonry of older foundations and the unhurried way the residents navigate the changing seasons.
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This page provides an embedded street and satellite map of Rosemont, Maryland. Coordinates: 39.333729, -77.62276. 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 Rosemont includes the ZIP code (21227, 20877, 21758), telephone area code (301, 240, 410, 443), county seat of Montgomery County (Rockville), and school district assignment (Frederick County Public Schools).
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 | August 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |