Katano is a city located in Osaka Prefecture, Japan. As of 31 December 2021, the city had an estimated population of 77,401 in 33417 house…Katano is a city located in Osaka Prefecture, Japan. As of 31 December 2021, the city had an estimated population of 77,401 in 33417 households and a population density of 3000 persons per km. The total area of the city is 25.55 square kilometres.