Question: Bordering Takoma in Washington, D.C., Takoma Park is part of the most populous county in which U.S. state?
Context: Maryland Route 195 (MD 195) is a state highway in the U.S. state of Maryland.  Known as Carroll Avenue, the state highway runs 1.90 mi from Eastern Avenue at the District of Columbia boundary in Takoma Park north to MD 193 in Silver Spring.  MD 195 is the main north–south state highway through Takoma Park in southeastern Montgomery County.  The highway provides access to Washington Adventist University and Washington Adventist Hospital and crosses Sligo Creek on the Carroll Avenue Bridge.  The state highway was constructed from Washington to Silver Spring in the late 1920s on a road that has existed since the 19th century.  The Carroll Avenue Bridge was built in 1932 as the third bridge at the site.  The bridge will be reconstructed in 2015. Takoma Park is a city in Montgomery County, Maryland.  It is a suburb of Washington, D.C., and part of the Washington metropolitan area.  Founded in 1883 and incorporated in 1890, Takoma Park, informally called "Azalea City," is a Tree City USA and a nuclear-free zone.  A planned commuter suburb, it is situated along the Metropolitan Branch of the historic Baltimore and Ohio Railroad, just northeast of Washington, D.C., and it borders the neighborhood of Takoma, Washington, D.C. It is governed by an elected mayor and six elected councilmembers, who form the city council, and an appointed city manager, under a council-manager style of government.  The city's population was 16,715 at the 2010 national census. Maryland Route 320 (MD 320) is a state highway in the U.S. state of Maryland.  Known as Piney Branch Road, the highway runs 2.84 mi from Eastern Avenue at the District of Columbia boundary in Takoma Park north to MD 650 in Adelphi.  MD 320 is a southwest–northeast highway that connects Takoma Park and Silver Spring in southeastern Montgomery County with Adelphi in far western Prince George's County.  The state highway originally extended from downtown Silver Spring to White Oak and connected with U.S. Route 29 (US 29) at both ends.  The Silver Spring–Adelphi portion of the highway was constructed by 1910.  The segment through Takoma Park and the Adelphi–White Oak segment, which later became MD 650, were built in the early 1930s; the Takoma Park portion was built as MD 513.  MD 320 was widened over its whole length in the late 1940s and reduced to its present course in the mid-1950s. Maryland Route 410 (MD 410) is a state highway in the U.S. state of Maryland.  Known for most of its length as East–West Highway, the highway runs 13.92 mi from MD 355 in Bethesda east to Pennsy Drive in Landover Hills.  MD 410 serves as a major east–west commuter route through the inner suburbs on the north side of Washington, D.C. (hence its name), connecting the commercial districts of Bethesda, Silver Spring, and Hyattsville; in addition, the highway serves the industrial area of Landover Hills and the residential suburbs of Chevy Chase, Takoma Park, Chillum, Riverdale.  and East Riverdale.  The road connects many of the arterial highways and freeways that head out of Washington as well as transit hubs centered on stations of the Washington Metro in Bethesda, Silver Spring, Hyattsville, and New Carrollton, with additional connections to MARC and Amtrak. Montgomery County, officially the County of Montgomery, is a county in the U.S. state of Maryland.  As of the 2010 census, the population was 971,777, with a 2014 estimate putting the population at 1,030,447.  It is the most populous county in Maryland.  The county seat and largest municipality is Rockville, although the census-designated place of Germantown is the most populous place. Takoma is a Washington Metro station in Washington, D.C. on the Red Line, bordering Takoma Park, Maryland.  The station is considered to be located in part of Takoma Park's Historic District.  It is the last station in the District of Columbia on the eastern end of the Red Line heading to Maryland, although the station is located on the DC-Maryland state line (Eastern Avenue) and therefore Maryland is immediately across the street from the station. Maryland Route 650 (MD 650) is a state highway in the U.S. state of Maryland.  Known as New Hampshire Avenue for most of its length, the state highway runs 25.89 mi from Eastern Avenue at the Washington, D.C. border north to MD 108 in Etchison.  MD 650 serves as a major north-south commuter route in northwestern Prince George's County and eastern Montgomery County, connecting the District of Columbia with the residential suburbs of Takoma Park, Langley Park, Maryland, Adelphi, Hillandale, White Oak, and Colesville.  By contrast, the part of MD 650 north of Spencerville is a quiet rural road connecting several small communities along the northeastern fringe of Montgomery County. Langley Park is an unincorporated area and census-designated place (CDP) in Prince George's County, Maryland.  It is located inside the Capital Beltway, on the northwest edge of Prince George's County, bordering Montgomery County, Maryland.  It is surrounded by the communities of Adelphi, Silver Spring, Takoma Park, Carole Highlands, and Lewisdale.  The neighborhood is contained between University Boulevard to the south, the Anacostia River to the north, the Prince Georges / Montgomery county line to the west, and Phelps Road to the east.  As of the 2010 census, it had a population of 18,755. Davis-Warner House is a historic home located at 8114 Carroll Avenue, Takoma Park, Montgomery County, Maryland.  It is a large, three story frame Stick Style residence constructed about 1875.  It is one of the oldest residences in Takoma Park, and one of the only surviving Eastlake Stick Style examples left in the Washington D.C., area.  It was built by John B. and Vorlinda Davis, who also operated a small store on nearby University Boulevard (then called "Old Bladensburg Road." Takoma is a neighborhood in northern Washington, D.C..  It is located in Advisory Neighborhood Commission 4B, in the District's Fourth Ward, within the northwest quadrant.  It borders the city of Takoma Park, Maryland.  Takoma is frequently referred to by many people as being the portion of "Takoma Park" that happens to be located in the District of Columbia.  This is mainly because Takoma and Takoma Park, together made up the original Takoma Park area.  They are only separated from each other by the Maryland/D.C.  Line.  That is why some apartment buildings and businesses in Takoma, D.C., may say "Takoma Park" on them.  There is even a welcome sign next to the Takoma Metro Station that says, "Welcome to Takoma Park, D.C." There is also an apartment complex in Takoma D.C. called, "The Gables at Takoma Park".  Takoma is a diverse neighborhood, populated mostly by middle-class families.  Its small downtown has recently been re-developed, bringing in new residents and attractive new businesses.  Many of the houses in Takoma are historic, with some over 100 years old.
Answer: Maryland