According to the United States Census Bureau, the CDP has a total area of 6.5 square miles (17 km2), all land.
Herbert Run, a stream, runs through Arbutus and surrounding areas which splits, and becomes Herbert Run East and West.
History
The original Relay was an important station on the Baltimore and Ohio Railroad. It was where traffic from Baltimore merged with that from Washington, before continuing west along the railroad's main line towards Wheeling, West Virginia (prior to 1863, Virginia). It was also a key junction for the railroad's telegraph system (the first major system in the country). The Thomas Viaduct is also located in Relay. The bridge is now operated by CSX Transportation, which acquired the B&O in 1987.
As of the 2010 census Arbutus had a population of 20,483. The racial and ethnic composition of the population was 76.6% non-Hispanic white, 9.5% non-Hispanic black, 0.2% Native American, 2.1% Asian Indian, 6.5% other Asian, 0.1% Pacific Islander, 0.2% non-Hispanic from some other race, 2.3% from two or more races and 2.9% Hispanic or Latino of any race.[8]
As of the census[9] of 2000, there were 20,116 people, 8,120 households, and 5,204 families residing in the CDP. The population density was 3,093.8 inhabitants per square mile (1,194.5/km2). There were 8,380 housing units at an average density of 1,288.8 per square mile (497.6/km2). The racial makeup of the CDP was 85.21% White, 6.27% African American, 0.28% Native American, 6.10% Asian, 0.02% Pacific Islander, 0.48% from other races, and 1.63% from two or more races. Hispanic or Latino of any race were 1.53% of the population.
There were 8,120 households, out of which 28.0% had children under the age of 18 living with them, 48.6% were married couples living together, 11.0% had a female householder with no husband present, and 35.9% were non-families. 27.6% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.99.
In the CDP, the population was spread out, with 22.2% under the age of 18, 8.5% from 18 to 24, 33.5% from 25 to 44, 21.3% from 45 to 64, and 14.4% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 93.8 males. For every 100 females age 18 and over, there were 91.2 males.
The median income for a household in the CDP was $47,792, and the median income for a family was $54,003. Males had a median income of $37,766 versus $29,129 for females. The per capita income for the CDP was $22,456. About 4.5% of families and 6.8% of the population were below the poverty line, including 6.5% of those under age 18 and 6.1% of those age 65 or over.
Emergency services
Fire and emergency medical services are provided by the Arbutus Volunteer Fire Department[10] Baltimore County Station 35, as well as Halethorpe's Baltimore County Station 5. These stations provide fire protection, heavy rescue, swift water rescue, and paramedic-level emergency medical services to the citizens of Arbutus and the surrounding communities. Mutual aid is provided by the surrounding Baltimore County stations as well as the Baltimore City and Howard County fire departments.
Police protection is provided mainly by the Baltimore County Police Department, Wilkens Precinct. Additional police service is provided by the Baltimore County Sheriff's Office, UMBC Police, Maryland State Police, and the Maryland Transportation Authority Police.
