Title: Geography of Washington, D.C.
Content: Bethesda, Maryland ; Brookmont, Maryland ; Capitol Heights, Maryland ; Chevy Chase (CDP), Maryland ; Chevy Chase Village, Maryland ; Chillum, Maryland ; Colmar Manor, Maryland ; Coral Hills, Maryland ; Cottage City, Maryland ; Fairmount Heights, Maryland ; Glassmanor, Maryland Hillcrest Heights, Maryland ; Mount Rainier, Maryland ; Seat Pleasant, Maryland ; Silver Hill, Maryland ; Silver Spring, Maryland ; Suitland, Maryland ; Takoma Park, Maryland ; Alexandria, Virginia ; Arlington, Virginia ; McLean, Virginia (touches Washington, D.C., at one corner only) The District of Columbia is bordered by various cities, towns, villages, and unincorporated CDPs in Maryland and Virginia. Following is a list of those adjacent communities.   In addition to the places named above, there are other small unincorporated parts of Prince George's County, Maryland, which also border the District.
Title: Washington, D.C.
Content:  Washington, D.C., is located in the mid-Atlantic region of the U.S. East Coast. Due to the District of Columbia retrocession, the city has a total area of 68.34 sqmi, of which 61.05 sqmi is land and 7.29 sqmi (10.67%) is water. The district is bordered by Montgomery County, Maryland to the northwest; Prince George's County, Maryland to the east; Arlington County, Virginia to the west; and Alexandria, Virginia to the south. Washington, D.C., is 38 mi from Baltimore, 124 mi from Philadelphia and 227 mi from New York City. The south bank of the Potomac River forms the district's border with Virginia and has two major tributaries: the Anacostia River and Rock Creek. 
Title: Maryland City, Maryland
Content:  Maryland City is located at 39.09389°N, -76.81806°W (39.092561, &minus;76.819419) in the westernmost corner of Anne Arundel County. It is bordered by Laurel in Prince George's County to the west, by the CDP of Scaggsville in Howard County to the north, by the CDP of Jessup to the northeast, and by Fort Meade to the east. Uninhabited portions of Fort Meade are to the south. The Baltimore–Washington Parkway (Maryland Route 295) runs through the CDP, leading southwest 19 mi to downtown Washington and 18 mi northeast to downtown Baltimore. Access from the parkway to Maryland City is via Maryland Route 198 (Fort Meade Road). Maryland Route 32 (the Patuxent Freeway) forms the northeast edge of the CDP. According to the United States Census Bureau, the CDP has a total area of 20.0 km2, all land.
Title: Bethesda, Maryland
Content:  two and one-half miles from Washington, DC's western boundary, making Bethesda a close-in suburb of Washington. Other focal points of downtown Bethesda include the Woodmont Triangle, bordered by Old Georgetown Road (Maryland Route 187), Woodmont and Rugby Avenues, and the Bethesda Row, centered at the intersection of Woodmont Avenue and Bethesda Avenue. Much of the dense construction in that area followed the opening of the Bethesda station on the Red Line of the Washington Metro rapid transit system, also located at this intersection and the centerpiece of the Bethesda Metro Center development. The Medical Center Metro stop lies approximately 0.7 mile north of the Bethesda stop, Medical Center, which serves the NIH Campus, the Walter Reed National Military Medical Center, and the Uniformed Services University of the Health Sciences.
Title: Maryland
Content:  Most of the population of Maryland lives in the central region of the state, in the Baltimore metropolitan area and Washington metropolitan area, both of which are part of the Baltimore–Washington metropolitan area. The majority of Maryland's population is concentrated in the cities and suburbs surrounding Washington, D.C., as well as in and around Maryland's most populous city, Baltimore. Historically, these and many other Maryland cities developed along the Fall Line, the line along which rivers, brooks, and streams are interrupted by rapids and waterfalls. Maryland's capital city, Annapolis, is one exception to this pattern since it lies along the banks of the Severn River, close to where it empties 
Title: Maryland
Content:  town of Hancock, in western Maryland, about two-thirds of the way across the state, less than 2 mi separates its borders, the Mason–Dixon line to the north, and the northwards-arching Potomac River to the south. Portions of Maryland are included in various official and unofficial geographic regions. For example, the Delmarva Peninsula is composed of the Eastern Shore counties of Maryland, the entire state of Delaware, and the two counties that make up the Eastern Shore of Virginia, whereas the westernmost counties of Maryland are considered part of Appalachia. Much of the Baltimore–Washington corridor lies just south of the Piedmont in the Coastal Plain, though it straddles the border between the two regions.
Title: Geography of Washington, D.C.
Content:   Washington, D.C., in the United States, is located at 38.895°N, -77.03639°W (the coordinates of the Zero Milestone, on The Ellipse). According to the United States Census Bureau, the city has a geographical area of 68.3 sqmi, 61.4 sqmi of which is land, and the remaining 6.9 sqmi (10.16%) of which is water. Washington is surrounded by the states of Virginia (on its southwest side) and Maryland (on its southeast, northeast, and northwest sides); it interrupts those states' shared border, which is the south shore of the Potomac River both upstream and downstream from the District. The portion of the Potomac River that passes Washington is virtually entirely within the District's border, as the District extends to the south bank. The city contains the historic "federal city", which was formerly part of those two adjacent states before they respectively ceded it for the national capital. The land ceded from Virginia was returned by Congress in 1847, so what remains of the modern District was all once part of Maryland.
Title: St. Mary's County, Maryland
Content:  Maryland Route 489 ; MD Route 520.svg Maryland Route 520 ; MD Route 584.svg Maryland Route 584 ; MD Route 712.svg Maryland Route 712 ; MD Route 863.svg Maryland Route 863 ; MD Route 868.svg Maryland Route 868 ; MD Route 944.svg Maryland Route 944 ; MD Route 945.svg Maryland Route 945 Numerous state highways serve St. Mary's County, including:  Limited local buses are provided through St. Mary's Transit and commuter bus service to Washington, D.C. is provided by MTA. Southern Maryland Express shuttle services daily schedules to Baltimore (BWI), Dulles (IAD), and Ronald Reagan (DCA). The nearest commercial airports are Reagan National Airport in Arlington County, Virginia and Baltimore Washington International Airport in suburban Baltimore. St. Mary's County also is served by a general aviation airport, Captain Walter Duke Regional Airport near California, Maryland
Title: Local access and transport area
Content: 236 see Washington, D.C.; most of this LATA is actually in Maryland ; 238 Baltimore ; 240 Hagerstown ; Includes the easternmost part of West Virginia around Martinsburg as far as Route 9 ; Includes the northwestern part of the Eastern Panhandle of West Virginia including Keyser, from Grant County to Short Gap ; Includes area of Pennsylvania just north of Hancock, Maryland ; 242 Salisbury 
Title: McLean, Virginia
Content:  of 24.88 sqmi of which 24.79 sqmi is land and 0.09 sqmi is water. As an inner suburb of Washington, D.C., McLean is a part of both the Washington Metropolitan Area and the larger Baltimore-Washington Metropolitan Area. The CDP includes the unincorporated communities of Langley, Lewinsville, and West McLean, and it borders several other Washington suburbs including: Potomac and Cabin John, Maryland to the north; Brookmont, Maryland to the northeast; Arlington to the southeast; Falls Church to the south; Idylwood, Pimmit Hills, and Tysons Corner to the southwest; Wolf Trap to the west; and Great Falls to the northwest. McLean has a humid subtropical climate (Cfa) and is in hardiness zone 7a.

Question: what part of maryland is close to washington dc?
Answer: Charles County.
Calvert County.
Montgomery County.
Washington metropolitan area.
Prince George's County.
Frederick County.