Biohazard Cleanup Near Winchester Arnold, MD

Arnold is a census-designated place (CDP) in Anne Arundel County, Maryland, on the Broadneck Peninsula about 5 miles north of downtown Annapolis and about 24 miles south of Baltimore.

The community is named for John Arnold, a War of 1812 veteran who acquired 300 acres on the north side of the Severn River; his son Thomas Arnold later became station master for the Baltimore and Annapolis Short Line Railroad, and much of Arnold's land once lay within the Swan Neck proprietary grant made by Governor William Stone to Edward Lloyd I.

The 2020 census counted 24,064 people in Arnold, up from 23,106 in 2010.

The 2020 census recorded 8,684 households and 9,064 housing units in the CDP, and the median age in 2020 was 40.4 years.

Arnold covers about 13.56 square miles in total, of which about 10.82 square miles are land and 2.74 square miles are water, the tidal Severn River to the southwest and the Magothy River to the northeast.

Arnold borders Severna Park to the northwest, Cape St. Claire to the southeast, Annapolis to the southwest, and Lake Shore to the northeast, and its neighborhoods straddle College Parkway and Maryland Route 2, the Ritchie Highway.

Arnold has its own ZIP code, 21012.

Anne Arundel Community College, located in Arnold along College Parkway, is regularly rated among the top community colleges in the nation.

The Dr. Martin Luther King Jr. Memorial on the community college's west campus was the first memorial to Dr. King erected in Maryland.

Arnold students attend Broadneck High School, and the community's schools include Arnold, Belvedere, and Broadneck elementary schools and the Severn River and Magothy River middle schools.