Osaka Prefecture is located in the Kansai region on Honshu, the main island of Japan. It covers the smallest prefecture land area in Japan, but boasts of largest population and the second only after the capital, Tokyo. Mountains surround three sides of the prefecture and the west is open to Osaka bay.
Osaka city is the capital city of Osaka prefecture, comprised of 24 wards with the population of 2.6 million. It is the third largest city by population after the Tokyo and Yokohama.
Historically a merchant city, Osaka has been the economic powerhouse of the Kansai region for many centuries and still serves as a major economic hub.