[2] Ama is a member of the World Health Organization’s Alliance for Healthy Cities (AFHC).

During the Sengoku period, it was the home of the daimyō Hachisuka Masakatsu, whose clan ruled from Hachitsuka Castle.

During the early Meiji period, the area was organized into several villages under Ama District, Aichi Prefecture with the establishment of the modern municipalities system.

Ama has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 22 members.

In terms of national politics, the city is part of Aichi District 9 of the lower house of the Diet of Japan.

Due to its proximity to the Nagoya metropolis, Ama has developed into a commuter town and its population has grown rapidly.