Frederick County Map, Maryland

Frederick County Map Collection
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Frederick County, Maryland

Frederick County sits in the western part of Maryland, about an hour’s drive from both Baltimore and Washington, D.C. The Appalachian Mountains loom in the distance making a stunning backdrop.
Frederick is the county seat. It boasts a downtown with brick-lined streets and quirky shops. Civil War buffs flock here to explore battlefields and museums.
But it’s not all about the past. People love hiking here in the Catoctin Mountain Park trails. And let’s not forget the county’s claim to fame. It’s the final resting place of Francis Scott Key, who penned “The Star-Spangled Banner”.
Category | Details |
---|---|
County Name | Frederick County |
County Seat | Frederick |
Population | 300,000 |
Cities, Towns, and Communities | Frederick, Brunswick, Thurmont, Middletown, Walkersville, Emmitsburg, New Market, Urbana |
Interstates and Highways | Interstate 70, Interstate 270, U.S. Route 15, U.S. Route 40, Maryland Route 26, Maryland Route 85, Maryland Route 180 |
FIPS Code | 24-021 |
Total Area (Land and Water) | 660.5 square miles (land: 660.0 sq mi, water: 0.5 sq mi) |
Adjacent Counties (and Direction) | Adams County, Pennsylvania (North), Carroll County (East), Franklin County, Pennsylvania (Northwest), Montgomery County (South), Washington County (West), Loudoun County, Virginia (Southwest) |
Time Zone | Eastern Time Zone (EST) |
State | Maryland |
Coordinates | 39.43°N, 77.42°W |
Etymology | Named after Frederick Calvert, 6th Baron Baltimore |
Major Landmarks | Catoctin Mountain Park, Monocacy National Battlefield, National Shrine of St. Therese, Frederick Historic District |
Website | Frederick County Website |
TRANSPORTATION MAP
Frederick County Road Map
I-70 barrels east-west like a main artery, while I-270 branches south toward D.C. Mountainous areas force roads like US-15 into dramatic curves. Some of these overlooks reveal the entire county. Magnify important areas using our dynamic zoom feature below.

SATELLITE IMAGERY
Frederick County Satellite Map
Agricultural fields occupy the northeast. This gives way to dark green forest covering the mountains. Frederick city spreads outward in a radial pattern from the center. But its growth is mostly constrained by the surrounding ridges.

OUTLINE MAP
Frederick County Blank Map
Frederick County is sort of like an oval shape. The Potomac River snakes along the southern edge, separating Maryland from Virginia. Pennsylvania claims the entire northern border.

Neighboring Counties
Here are the 6 neighboring counties of Frederick County:
Maryland County Map
With 23 counties and Baltimore City, Maryland gives you a distinct experience in every corner. City life, small towns, and outdoor adventures all come together. Learn more in our Maryland county maps.