It faces the Seto Inland Sea to the west and borders Tokushima Prefecture across the Sanuki Mountains to the south.

During the Edo Period, the city area was part of the holdings of Marugame Domain under the Tokugawa shogunate.

Following the Meiji restoration, the village of Kan'onji was established within Toyota District with the creation of the modern municipalities system on December 16,1878.

Kan'onji has a mayor-council form of government with a directly elected mayor and a unicameral city council of 22 members.

In terms of national politics, the town is part of Kagawa 3rd district of the lower house of the Diet of Japan.

Shikoku Railway Company - Yosan Line This Kagawa Prefecture location article is a stub.