Kemp Mill is a census-designated place and an unincorporated census area in Montgomery County, Maryland, United States. The population was 12,564 at the 2010 census.
As an unincorporated area, Kemp Mill does not have officially defined boundaries. However, Kemp Mill is recognized by the United States Census Bureau as a census-designated place, and by the United States Geological Survey as a populated place located at 39°2′2″N 77°1′28″W / 39.03389°N 77.02444°W / 39.03389; -77.02444 (39.033832, −77.024541).
According to the United States Census Bureau, the neighborhood has a total area of 2.54 square miles (6.2 km²), all of it land.
Kemp Mill is considered by many of its residents, particularly those members of the Orthodox Jewish community, to be part of unincorporated Silver Spring, Maryland. It is served by the Wheaton Post Office.
As of the census of 2000, there were 9,956 people, 3,386 households, and 2,654 families residing in the area. The population density was 4,126.3 people per square mile (1,595.0/km²). There were 3,448 housing units at an average density of 1,429.0/sq mi (552.4/km²). The racial makeup of the area was 68.45% White, 15.30% African American, 0.23% Native American, 8.18% Asian, 0.09% Pacific Islander, 4.91% from other races, and 2.84% from two or more races. Hispanic or Latino of any race were 10.80% of the population.
There were 3,386 households out of which 33.9% had children under the age of 18 living with them, 65.3% were married couples living together, 9.6% had a female householder with no husband present, and 21.6% were non-families. 17.0% 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 2.89 and the average family size was 3.22. Twenty-seven percent of Kemp Mill residents hold a graduate degree.
In the area, the population was spread out with 25.1% under the age of 18, 5.6% from 18 to 24, 25.9% from 25 to 44, 24.7% from 45 to 64, and 18.7% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 95.6 males. For every 100 females age 18 and over, there were 91.5 males.
The median income for a household in the CDP was $89,294, and the median income for a family was $111,985. Males had a median income of $52,244 versus $41,285 for females. The per capita income for the area was $34,570. About 2.3% of families and 4.1% of the population were below the poverty line, including 2.6% of those under age 18 and 1.7% of those age 65 or over.
A large number of Russian-Jewish immigrants have settled in Kemp Mill, particularly since the 1980s. Due to the large Ethiopian and Jewish populations in Silver Spring and Washington, D.C., Kemp Mill is home to a sizeable community of Beta Israel (Ethiopian Jews).