The area of present-day Higashimurayama has been inhabited since
Japanese Paleolithic times, and numerous remains from the
Jōmon,
Yayoi and
Kofun periods have been discovered. During the
Nara period, it became part of ancient
Musashi Province. During the
Kamakura period, it was the location of the
Battle of Kumegawa in 1333. In the post-
Meiji Restoration cadastral reform of April 1, 1889, several villages merged to form Higashimurayama Village in Kitatama District, at that time part of
Kanagawa Prefecture. The entire district was transferred to the control of Tokyo Prefecture(東京府) on April 1, 1893. On April 1, 1942, Higashimurayama Village became the town of Higashimurayama. On April 1, 1964, Higashimurayama was elevated to city status. ==Government==