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 NameDirectly accessible data for 170 industries from 150+ countries and over 1 million facts: ... Rate of full-time workers working 60 hours per week Japan 2025, by age and gender;