[2] Chiba Prefecture Yachimata has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall.

Yachimata was part of a region of horse ranches under the direct control of the Tokugawa shogunate in the Edo period.

Yachimata was officially designated a village on April 1, 1889 with the creation of the modern municipalities system, and was elevated to town status on January 1, 1919.

In terms of national politics, the city is part of Chiba 9th district of the lower house of the Diet of Japan.

The prefecture also operates one special education school for the handicapped JR East – Sōbu Main Line