Annapolis is the capital of Maryland, it is located on the southern bank of the Severn River, near its mouth on Chesapeake Bay. A port of entry and a commercial and distribution center for the surrounding agricultural area, the city relies economically on government activity, the production of radar electronic equipment and underwater military devices, and communications research and development. A 2006 real estate survey has estimated the population of Annapolis, Maryland at 36,408.