Brooklyn is one of the southernmost neighborhoods in Baltimore, Maryland. It is located near Anne Arundel County along Governor Ritchie Highway which is also Maryland Route 2. Its main roads are South Hanover Street,, Potee Street, and East Patapsco Avenue, Sixth Street, Tenth Street, and West Bay Avenue which borders the neighboring Curtis Bay community to the east, running through Bay Brook Park, which separates the two. South Hanover Street also serves as the dividing line between east–west streets in Brooklyn, as Charles Street does not exist here.

Anne Arundel County, also notated as AA or A.A. County, is located in the U.S. state of Maryland. As of the 2020 United States census, its population was 588,261, an increase of just under 10% since 2010. Its county seat is Annapolis, which is also the capital of the state. The county is named for Anne Arundell, Lady Baltimore, a member of the ancient family of Arundells in Cornwall, England, and the wife of Cecilius Calvert, 2nd Baron Baltimore (1605–1675), founder and first lord proprietor of the colony Province of Maryland.