The Mide, Uyama, and Sumiyoshi rivers that originate in the Izumi Mountains flow through the central part of the town towards Osaka Bay.

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

Kumatori collectively with the cities of Kaizuka, Sennan, Hannan and the minor municipalities of Sen'nan District contributes two members to the Osaka Prefectural Assembly.

In terms of national politics, the town is part of Osaka 19th district of the lower house of the Diet of Japan.

In exchange for hosting Kyoto University's Institute for Integrated Radiation and Nuclear Science, the government agreed to make Kumatori Station on the Hanwa Line a stop for express trains, which has contributed to large-scale residential land development and a rapid increase in population since 1963.