Izumi is a city located in Osaka Prefecture, Japan. As of 31 December 2021, the city had an estimated population of 184,615 in 80862 households and a population density of 2200 persons per km². The total area of the city is 84.98 square kilometres (32.81 sq mi).

Osaka Prefecture is a prefecture of Japan located in the Kansai region of Honshu. Osaka Prefecture has a population of 8,778,035 and has a geographic area of 1,905 square kilometres (736 sq mi). Osaka Prefecture borders Hyōgo Prefecture to the northwest, Kyoto Prefecture to the north, Nara Prefecture to the southeast, and Wakayama Prefecture to the south.