The exact date of its founding is unclear, but it is an ancient shrine said to have been built here by Emperor Jimmu, who prayed for the success of his expedition to the east. In the second year of the reign of Emperor Chuai (200), when Empress Jingu visited the area, clear water suddenly gushed forth. The Empress was delighted by this and enshrined it as a sacred spring, which is why the area came to be called "Izumi." It is also said that Toyotomi Hideyoshi had the water from Izumi Clear Water transported to Osaka Castle and used it in the tea ceremony. In the second year of the reign of Reiki (716), when Izumi no Gen was established and the area became the center of local politics, Izumi Kuni Sosha Shrine was built next to Izumi Inoue Shrine, enshrining the Izumi Five Shrines (Five Great Shrines: Otori, Izumianashi, Hijiri, Tsumikawa, and Hinone). To the north of the main hall of Izumi Inoue Shrine remains the main shrine building of the Gosha Sosha, which was rebuilt by Toyotomi Hideyori in 1605 and is designated as an Important Cultural Property of Japan.