More than 63 million people live in Japan's largest cities City Mayors: Largest Japanese cities city of Japan «More than 63 million people live in Japan's largest cities» Populations Largest Japanese cities http://www.citymayors.com/gratis/japanese_cities.html «More than 63 million people live in Japan's largest cities» Populations More than 63 million people live in Japan's largest cities Source More than 63 million people live in Japan's largest cities City Mayors: Largest Japanese cities