Asakuchi is in the southwestern Okayama Prefecture, bordered by the Seto Inland Sea to the south.

[3] Per Japanese census data,[4] the population of Asakuchi has remained stable for the past 60 years.

Following the Meiji restoration, the villages of Kamogata and Yorishima were established within Asakuchi District, Okayama with the creation of the modern municipalities system on June 1, 1889.

Asakuchi has a mayor-council form of government with a directly elected mayor and a unicameral city council of 16 members.

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