Osaka, Japan: OSK1

data osakaThe current metro area population of Osaka in 2025 is 18,922,000, a 0.24% dec from 2025. The metro area population of Osaka in 2025 was 18,967,000 , a 0.24% dec from 2025.Osaka Show Coming in November 2025! The Western Japan's largest ITDital Transformation(DX) Show will feature four major exhibitions: Japan IT Week