data japan 2023The 2025 population density in Japan is 338 people per Km2 (875 people per mi2), calculated on a total land area of 364,555 Km2 (140,755 sq. miles). Largest Cities in Japan # City NameJapan Nominal GDP reached 991.9 USD bn in Dec 2022, compared with 1,000.8 USD bn in the previous quarter. Nominal GDP in Japan is updated quarterly, available from Mar 1957 to