Edgewater is a suburb located southwest of Annapolis on the south side of the tidal South River. It is bordered by Mayo to the east, Riva to the west, and Lothian to the south. To the north, across the South River, are the communities of Parole and Annapolis Neck.
Edgewater is often considered a suburb of Annapolis due to its proximity and development in the area. The area is steadily increasing with retail and residential development. Edgewater is part of the southern portion of Anne Arundel County. Londontown, Southdown, South River Colony, Glebe Heights, Gingerville and Edgewater Beach are some of the neighborhoods found in Edgewater.