Toyonaka is a city located in the Osaka Prefecture of Japan. It serves as a suburban city of Osaka City and is situated within the larger Kyoto-Osaka-Kobe metropolitan area.
As of May 1, 2023, the city had an estimated population of 399,263 residents living in 179,651 households. The total land area of Toyonaka is 36.39 square kilometres (14.05 sq mi), resulting in a population density of approximately 5,700 persons per km2.