Hyōgo Prefecture Aioi has a Humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall.

The Aioi area was part of ancient Harima Province and was located on the San'yō highway linking western Japan with the Kinai region.

Aioi has a mayor-council form of government with a directly elected mayor and a unicameral city council of 14 members.

In terms of national politics, the city is part of Hyōgo 12th district of the lower house of the Diet of Japan.

Aioi has traditionally been famous for shipbuilding, which, despite many years of decline, still maintains a strong presence through Ishikawajima-Harima Heavy Industries (IHI).

JR West – San'yō Shinkansen JR West – San'yō Main Line / Akō Line In November 2005, the city was mentioned in world news reports after a large daikon radish that grew though the pavement was found slashed.