<page_title> List of Japanese prefectures by population </page_title> <section_title> Prefectures of Japan ranked by population as of October 1, 2015 </section_title> <table> <cell> Tottori-ken <col_header> Prefectures </col_header> </cell> <cell> 582,023 <col_header> Est. Population of Japanese Nationality </col_header> </cell> </table>
Tottori Prefecture is the least populous prefecture of Japan.