It covers 13 areas from Oppama in the north to Kurihama and Nobi in the south.

Located near the Nissan Oppama plant, Yokosuka is a major port for the shipping of automobiles.

The fishing fleet brings in tuna and other ocean products.

Tokyo-Wan Ferry links Yokosuka with the Port of Kanaya in Futtsu, Chiba Prefecture.

Other ferries go to Tokyo, Izu Ōshima and Ōita in Kyūshū.