
Avondale is an unincorporated community in Prince George's County Maryland, United States. It is contained between Eastern Avenue NE to the south, Queens Chapel Road (MD-500) to the east, and the Northwest Branch Anacostia River to the north and west.

Brookmont is a census-designated place and an unincorporated area in Montgomery County, Maryland, United States. Brookmont is often considered part of neighboring Bethesda because it falls within Bethesda's 20816 zip code.

Capitol Heights is a town in Prince George's County, Maryland, United States, located on the border of both the Northeast & Southeast quadrants of Washington. The town of Capitol Heights is officially bounded between Southern Avenue NE/SE to the north, Yost Place, and Eastern Avenue NE to the east, the Watts Branch Stream, Brooke Road, and Capitol Heights Boulevard to the south, and Marlboro Pike to the west. The zip code of Capitol Heights is 20743.

Chevy Chase is an incorporated town in Montgomery County, Maryland, United States. The population was 2,824 at the 2010 census.

Chevy Chase Section Five is an incorporated village in Montgomery County, Maryland, United States. The population was 658 at the 2010 census.

Chevy Chase Section Three is a village in Montgomery County, Maryland. It was originally organized as a Special Tax District in 1916 and later incorporated as a village in 1982. The population was 760 at the 2010 census.

Chevy Chase Village, Maryland is an incorporated municipality in Montgomery County, Maryland, United States, bordering Washington, D.C. It is made up of sections 1, 1a, and 2 of Chevy Chase, as originally designated by The Chevy Chase Land Company. The population was 1,953 as of the 2010 census. The town is the wealthiest in Maryland, with a median income of over $250,000, the highest income bracket listed by the census bureau, and a median home value of $1,823,800.
Chevy Chase is a census-designated place (CDP) in Montgomery County, Maryland, United States. The population was 9,381 at the 2000 census.

Chillum is an unincorporated area in Prince George's County, Maryland, United States, bordering Washington, D.C. and Montgomery County. Chillum is contained between the Northwest Branch Anacostia River to the east, East West Highway and the Sligo Creek River to the north, New Hampshire Avenue to the west, and Eastern Avenue NE to the south. Chillum borders the adjacent communities of Avondale, Green Meadows, and Carole Highlands in Prince George's County as well as the city of Takoma Park in Montgomery County, and the Riggs Park, Queens Chapel, and North Michigan Park neighborhoods of Northeast Washington D.C. The population was 33,513 at the 2010 census. In addition to being its own unincorporated neighborhood, Chillum is also considered to be its own Census Designated Place in Prince George's County. As of the 2000 census, the Chillum CDP included Chillum, as well as the adjacent unincorporated communities of Avondale, Carole Highlands, Green Meadows and Lewisdale.

Coral Hills is an unincorporated area and census-designated place (CDP) in Prince George's County, Maryland, United States. As of the 2010 census, the CDP population was 9,895.

Forest Glen Park is an unincorporated community and populated place in Montgomery County, Maryland, and a neighborhood of Silver Spring. This quaint, leafy neighborhood's history dates back to between 1891 and the early twentieth century when the area developed alongside the adjoining National Park Seminary.

Friendship Village is an urbanized, unincorporated area in Montgomery County, Maryland, United States. Inclusive within the Friendship Village CDP is the Village of Friendship Heights. The population was 4,512 at the 2000 census.

Martin's Additions is a village in Montgomery County, Maryland, United States. It was established as a Special Tax District in 1916 and incorporated as a village in 1985. The population was 933 at the 2010 census.

Seat Pleasant is an incorporated city in Prince George's County, Maryland, United States, located immediately east of Washington. The population was 4,542 at the 2010 census. Two state highways pass through the community — Maryland routes 704 and 214. The Washington Metro's Blue and Silver Lines are nearby. The Washington Football Team's stadium is east of Seat Pleasant, near the Capital Beltway (I-95/495).

Somerset is an incorporated town in Montgomery County, Maryland, United States, located near its border with Washington, D.C.. The population was 1,216 at the 2010 census. Somerset is not to be confused with Somerset County, which has no relationship to the town; the two are approximately 150 miles apart.
Takoma Park is a city in Montgomery County, Maryland, United States. It is a suburb of Washington, 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, and it shares a border and history with the adjacent D.C. neighborhood of Takoma. 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.