Other cities in the 240 area code include: College Park, Laurel, Greenbelt, Cumberland, Bladensburg, La Plata, Frostburg, Mount Rainier, Thurmont, Brunswick, Walkersville, District Heights, Poolesville, Middletown, Mount Airy, Indian Head, Boonsboro, Emmitsburg, Chevy Chase, Smithsburg, Kensington, Williamsport, North Beach, Oakland, Westernport, Myersville, Ridgely, Hancock, Keedysville, Lonaconing, Garrett Park, Grantsville, New Market, Friendsville, Barton, Clear Spring, Accident, Kitzmiller, Glen Echo, Barnesville, Burkittsville, Brookeville, and Luke.
Silver Spring is an unincorporated community and census-designated place (CDP) in Montgomery County, Maryland, United States. It had a population of 76,716 according to 2013 estimates by the United States Census Bureau, making it the fourth most populous place in Maryland, after Baltimore, Columbia, and Germantown. The urbanized, oldest, and southernmost part of Silver Spring is a major business hub that lies at the north apex of Washington, D.C. As of 2004, the Central Business District (CBD) held 7,254,729 square feet (673,986 m 2) of office space, 5216 dwelling units and 17.6 acres (71,000 m 2) of parkland.
Hyattsville is a city in Prince George's County, Maryland, and also a close, urban suburb of Washington, D.C. The population was 17,557 at the 2010 United States Census.
Gaithersburg), [N 1] officially the City of Gaithersburg, is a city in Montgomery County, Maryland, United States. At the time of the 2010 census, Gaithersburg had a population of 59,933, making it the fourth largest incorporated city in the state, behind Baltimore, Frederick, and Rockville. Gaithersburg is located to the northwest of Washington, D.C., and is considered a suburb and a primary city within the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Statistical Area. Gaithersburg was incorporated as a town in 1878 and as a city in 1968.Gaithersburg is divided into east and west sections, separated by Interstate 270. The eastern section of the city is older and is the original portion of the town before more recent growth.
The 240 area code lies within the Eastern Daylight Time Zone (or EDT). The current time in EDT is 3:56 PM on Jul 11, 2020.