The area of present-day Tateyama was part of ancient
Awa Province, dominated by the
Satomi clan during the
Sengoku period, who ruled from
Tateyama Castle. After the Edo period, most of the territory was part of the
feudal domain of . After the start of the
Meiji period, Tateyama Town (in
Awa District), Chiba Prefecture was proclaimed on April 1, 1889 with the creation of the modern municipalities system. Tateyama annexed neighboring Toyosu Village on April 1, 1914, and merged with Hōjō Town to form Tateyamahōjō Town on April 18, 1933. The city of Tateyama was proclaimed on November 3, 1939, with the merger of Tateyamahōjō with Nago and Funagata towns. The city was a base for the
Imperial Japanese Navy Air Service as well as a Naval Gunnery School until the end of
World War II. Tateyama expanded on May 3, 1954 by annexing six surrounding villages. ==Government==