As of the census of 2000, there were 7,344 people, 3,003 households, and 1,792 families residing in the area. The population density was 5,698.9 people per square mile. There were 3,091 housing units at an average density of 2,398.6/sq mi. The racial makeup of the area was 65.32% White, 17.46% African American, 0.41% Native American, 7.76% Asian, 0.05% Pacific Islander, 4.98% from other races, and 4.02% from two or more races. Hispanics or Latinos of any race constituted 14.26% of the population. There were 3,003 households, out of which 28.1% had children under the age of 18 living with them, 45.9% were married couplesliving together, 10.3% had a female householder with no husband present, and 40.3% were non-families. Households made up of individuals constituted 33.1%, and 14.0% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 3.09. In the area, the population was spread out, with 21.7% under the age of 18, 5.8% from 18 to 24, 33.0% from 25 to 44, 23.8% from 45 to 64, and 15.6% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 87.3 males. For every 100 females age 18 and over, there were 82.6 males. The median income for a household in the area was $59,844, and the median income for a family was $74,607. Males had a median income of $45,613 versus $38,975 for females. The per capita income for the area was $28,536. 3.8% of the population and 1.4% of families were below the poverty line. 1.1% of those under the age of 18 and 7.9% of those 65 and older were living below the poverty line.
Forest Glen was once part of a land grant made in 1680 to one of Archbishop John Carroll's ancestors. Daniel Carroll, one of the Founding Fathers of the United States, lived in Forest Glen. Carroll's body was buried in St. John the EvangelistCatholic Church Cemetery in Forest Glen. The church building was originally built as a wood-framed structure in 1774. It was replaced by a brick structure in 1894. Forest Glen station was originally planned to be built above-ground, which would have required the demolition of about fifteen homes. After community opposition to the above-ground station, Montgomery County approved a modified plan for an underground station. The community also opposed the originally planned location for the station, on the east side of Georgia Avenue between Sherwood Road and Tilton Drive. The station opened on September 22, 1990. Forest Glen station is below ground, the deepest train station in the Metrorail system. Forest Glen has been the subject of redevelopment for many years. In 2017, Montgomery County Park and Planning Commission began the consolidated sector plan review. In 2018, WMATA announced that it would do a feasibility study on the redevelopment of the parking lot of Forest Glen station.