data japan 2023In Japan, the current population is 124,370,947 as of 2025 with a projected decrease of 15% to 105,123,167 by 2050. −0.5% +0.041 percentage points change since 2022. Population byDirectly 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;