|Country||United States of America|
|• Total||5.0 sq mi (12.9 km2)|
|• Land||5.0 sq mi (12.9 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||105 ft (32 m)|
|• Density||2,200/sq mi (850/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|ZIP codes||20716, 20717, 20721|
|GNIS feature ID||0597758|
Mitchellville is located at .
According to the United States Census Bureau, the CDP has a total area of 5.0 square miles (13 km2), all of it land.
As of the United States Census of 2000, there were 9,611 people, 3,148 households, and 2,556 families residing in the CDP. The population density was 1,930.4 people per square mile (745.1/km²). There were 3,243 housing units at an average density of 651.4/sq mi (251.4/km²). The racial makeup of the CDP was 13.29% White, 78.50% African American, 0.26% Native American, 3.93% Asian, 0.06% Pacific Islander, 0.80% from other races, and 3.15% from two or more races. 2.09% of the population were Hispanic or Latino of any race.
There were 3,148 households out of which 41.1% had children under the age of 18 living with them, 61.8% were married couples living together, 15.3% had a female householder with no husband present, and 18.8% were non-families. 15.2% of all households were made up of individuals and 1.8% had someone living alone who was 65 years of age or older. The average household size was 3.02 and the average family size was 3.34.
In the CDP the population was spread out with 27.5% under the age of 18, 7.7% from 18 to 24, 28.5% from 25 to 44, 30.1% from 45 to 64, and 6.3% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 86.9 males. For every 100 females age 18 and over, there were 82.8 males.
The median income for a household in the CDP was $84,687, and the median income for a family was $91,297. Males had a median income of $52,228 versus $46,648 for females. The per capita income for the CDP was $30,801. About 1.9% of families and 2.8% of the population were below the poverty line, including 3.7% of those under age 18 and 7.3% of those age 65 or over.
Mitchellville was named for John Mitchell (1788–1862), who owned Essington Hall, the plantation that encompassed much of the area. He and his wife Mary Lanham are buried in the Mitchell Family Cemetery on Mitchellville Road.
- U.S. Geological Survey Geographic Names Information System: Mitchellville, Maryland
- "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data (DP-1): Mitchellville CDP, Maryland". U.S. Census Bureau, American Factfinder. Retrieved December 23, 2011.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "CENSUS OF POPULATION AND HOUSING (1790-2000)". U.S. Census Bureau. Retrieved 2010-07-18.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- Dwyer,, Michael F. "Mitchell Cemetery". Inventory Form for State Historic Sites #PG-71B-8. Maryland Historical Trust. Retrieved 16 September 2013.