Takoma Park is a city in Montgomery County, Maryland, United States. 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 shares a border and history with the adjacent Washington, 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 17,629 at the 2020 United States census.