thumb|Thomas Viaduct Elkridge is an unincorporated community and census-designated place (CDP) in Howard County, Maryland, United States. The population was 15,593 at the 2010 census. Founded early in the 18th century, Elkridge is adjacent to two other counties, Anne Arundel and Baltimore.
thumb|Thomas Viaduct Elkridge is an unincorporated community and census-designated place (CDP) in Howard County, Maryland, United States. The population was 15,593 at the 2010 census Founded early in the 18th century, Elkridge is adjacent to two other counties, Anne Arundel and Baltimore.