In a 680 AD cadastral reform, the districts forming Izu Province were administratively separated from Suruga, and the provincial capital was relocated to the right bank of the Abe River in what is now Shizuoka City.
However, after Imagawa Yoshimoto was defeated by Oda Nobunaga at the Battle of Okehazama, the province taken by Takeda Shingen of Kai.
After the Siege of Odawara (1590), Toyotomi Hideyoshi forced the Tokugawa to exchange their domains for the provinces of the Kantō region, and reassigned Sunpu Castle to one of his retainers, Nakamura Kazuichi.
However, after the defeat of Ishida Mitsunari at the Battle of Sekigahara, Tokugawa Ieyasu recovered his former domains, and made Sunpu Castle his home after he formally retired from the position of Shōgun.
During the Edo period, Suruga prospered due to its location on the Tōkaidō, and numerous post towns developed.