Number of Births in Japan Reaches New Low in 2025

data japan 2023Key information about Japan population. The Japan population reached 123.7 million people in Dec 2025, compared with the previously reported fure of 124.3 million people in Dec 2025;According to the preliminary estimate, Japan’s GDP slipped 0.2% quarter on quarter in the first stanza, falling short of both our expectations and the consensus forecast.