Dumbarton is a census-designated place (CDP) in Henrico County, Virginia, United States.

[5] As of the census[1] of 2000, there were 6,674 people, 3,515 households, and 1,507 families residing in the CDP.

The racial makeup of the CDP was 60.41% White, 28.93% African American, 0.27% Native American, 11.2% Asian, 0.01% Pacific Islander, 2.20% from other races, and 2.53% from two or more races.

There were 3,515 households, out of which 19.9% had children under the age of 18 living with them, 25.7% were married couples living together, 13.8% had a female householder with no husband present, and 57.1% were non-families.

47.6% of all households were made up of individuals, and 20.3% had someone living alone who was 65 years of age or older.