Lake Arbor is an unincorporated area and census-designated place (CDP) in Prince George’s County, Maryland, United States. The population was 9,776 at the 2010 census. It is one of the nation’s most affluent African-American communities. The ZIP Codes encompassing the CDP area are 20721 and 20774.
Lake Arbor is located at 38°54′30″N 76°49′46″W / 38.90833°N 76.82944°W / 38.90833; -76.82944 (38.908306, −76.829525).
According to the United States Census Bureau, the CDP has a total area of 3.2 square miles (8.3 km), of which 3.1 square miles (8.0 km) is land and 0.1 square miles (0.26 km), or 1.58%, is water.
As of the census of 2000, there were 8,533 people, 3,493 households, and 2,165 families residing in the CDP. The population density was 2,751.6 people per square mile (1,062.8/km²). There were 3,662 housing units at an average density of 1,180.9/sq mi (456.1/km²). The racial makeup of the CDP was 7.20% White, 88.74% African American, 0.28% Native American, 1.77% Asian, 0.02% Pacific Islander, 0.42% from other races, and 1.57% from two or more races. Hispanic or Latino of any race were 1.64% of the population.
There were 3,493 households out of which 34.2% had children under the age of 18 living with them, 40.1% were married couples living together, 17.1% had a female householder with no husband present, and 38.0% were non-families. 32.7% of all households were made up of individuals and 8.7% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 3.11.
In the CDP, the population was spread out with 25.7% under the age of 18, 6.3% from 18 to 24, 36.9% from 25 to 44, 22.1% from 45 to 64, and 9.0% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 76.4 males. For every 100 females age 18 and over, there were 71.3 males.
The median income for a household in the CDP was $74,599, and the median income for a family was $89,775. Males had a median income of $52,617 versus $45,644 for females. The per capita income for the CDP was $35,700. About 0.6% of families and 1.9% of the population were below the poverty line, including 0.4% of those under age 18 and 9.2% of those age 65 or over.