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| City | Garrison |
| State | Maryland (MD) |
| County | Baltimore |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 39.405939 |
| Longitude | -76.76053 |
| Population | 9,469 |
| Density | 1277.4 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 21117 |
| Area Code | 240, 301 |
| County Seat | Towson |
| School District | Baltimore County Public Schools |
Garrison is a locality in Baltimore County, Maryland, United States. It has a population of approximately 9,469. The population density is 1277.4 people per km². Garrison is located at 39.4059°N, 76.7605°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 21117.
Garrison unfolds across rolling hills, a verdant expanse where the sky often hangs a soft, watercolor blue. It lies 1.4 miles south-east of Owings Mills, MD (from Owings Mills, MD: bearing 132°T), and is situated 9.8 miles north-north-west of Carroll. The landscape is a gentle, sculpted terrain, softened by the generous Maryland rainfall, giving the trees a deep, almost velvety green. Fields, some neatly squared off for cultivation, others stretching in wilder, untamed swathes, undulate towards the horizon, punctuated by the darker, more steadfast shapes of mature woodlands. A quiet hum of insects often fills the air, a constant, unobtrusive soundtrack to the slow turn of the seasons, and in the early mornings, a faint mist can cling to the lower hollows, lending a spectral beauty to the awakening land. The history of Garrison is a quiet one, rooted in the agricultural traditions of Baltimore County, where farms, some still bearing the marks of generations of labor, dot the landscape. The land here has long been tended, yielding its bounty to those who worked it, and the echoes of that past are felt in the enduring stone of older farmhouses and the sturdy character of the local populace. While the economy has diversified over time, the enduring connection to the land remains palpable, a subtle undercurrent that informs the pace of life in Garrison. Distinctive features are often understated – a particularly venerable oak tree, the particular scent of pine needles after a summer shower, the way the light catches the weathered wood of a barn at dusk, all contribute to the unique, unhurried spirit of this place.
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This page provides an embedded street and satellite map of Garrison, Maryland — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 39.405939, -76.76053. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Garrison and Baltimore County.
Detailed location data for Garrison includes the ZIP code (21117), telephone area code (240, 301), county seat of Baltimore County (Towson), and school district assignment (Baltimore County Public Schools). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Garrison is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 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. Location verified by proximity — not name matching alone. |