 Fujioka and Onishi towns, and Kanna, Ono, Midori, Mikuri, Hirai, Hino, and Sanbagawa Village were created in Midorino District, Gunma Prefecture and Mihara village in Minamikanra District, Gunma Prefecture on April 1, 1889 with the creation of the municipalities system after the Meiji Restoration.In 1896, Minamikanra District was united with Midorino District and Tago District to create Tano District.On April 1, 1954, Fujioka annexed Kanna, Ono, Midori and Mikuri villages and was elevated to city status.