Honshu

Updated 14 September 2026

Honshu is Japan's largest island by far, covering about 228,000 km² — over 60% of the country's total land area — and home to roughly 104 million people, more than 80% of Japan's population. It is the world's second-most populous island after Java, and the country's political, economic and cultural core.

The island contains Japan's capital, Tokyo, along with Yokohama, Osaka, Nagoya, Kyoto, Hiroshima, and Sendai. It is traditionally divided into five regions: Tohoku in the north; Kanto, the most populous region, centred on greater Tokyo; Chubu in the centre, a major rice- and industry-producing area; Kansai (also called Kinki), anchored by Osaka as western Japan's financial hub, alongside Kobe and the former imperial capital Kyoto; and Chugoku in the southwest.

Honshu is also home to Mount Fuji (3,776 m), Japan's tallest peak and most recognisable landmark, straddling the border of Shizuoka and Yamanashi prefectures roughly 100 km southwest of Tokyo.