Fujikawaguchiko is a town located in Minamitsuru District, Yamanashi Prefecture, Japan. As of July 2012, the town had an estimated population of 25,538 and a population density of 161 persons per km². The total area was 158.516 km sq. Fujikawaguchiko is located in southern Yamanashi Prefecture, in the foothills of Mount Fuji and surrounds Lake Kawaguchi, one of the Fuji Five Lakes,
The area around Lake Kawaguchi has been inhabited since at least the Jomon period. It was on the road connecting Kai Province with Suruga Province, and is mentioned in Heian period records, which also document an eruption of Mount Fuji in 864 AD. During the Edo period, all of Kai Province was tenryō territory under direct control of the Tokugawa shogunate. During the cadastral reform of the early Meiji period in July 1, 1889, the area same under the jurisdiction of Minamitsuru District, Yamanashi Prefecture.