Honshu had a population of 104 million as of 2017[update], constituting 81.3% of the entire population of Japan,[11] and mostly concentrated in the coastal areas and plains. Approximately 30% of the total population resides in the Greater Tokyo Area on the Kantō Plain. As the historical center of Japanese cultural and political power,[12] the island includes several past Japanese capitals, including Kyōto, Nara, and Kamakura. Much of the island's southern shore forms part of the Taiheiyō Belt, a megalopolis that spans several of the Japanese islands.[12] Honshu also contains Japan's highest mountain, Mount Fuji, and its largest lake, Lake Biwa.[13]
Most of Japan's industry is located in a belt running along Honshu's southern coast, from Tokyo to Nagoya, Kyōto, Osaka, Kobe, and Hiroshima.[12][14] The island is linked to the other three major Japanese islands by a number of bridges and tunnels. The island primarily shares two climates, with Northern Honshu having four seasons with largely varying temperatures while the south experiences long, hot summers and cool to mild winters.[15]
^See Japan Census of 2000; the editors of List of islands by population appear to have used similar data from the relevant statistics bureaux and totalled up the various administrative districts that make up each island, and then done the same for less populous islands. An editor of this article has not repeated that work. Therefore this plausible and eminently reasonable ranking is posted as unsourced common knowledge.