Where do Aynu people live?

The Aynu are an indigenous people of Japan (Hokkaido, and formerly northeastern Honshu) and Russia (Sakhalin, the Kuril Islands, and formerly the Kamchatka Peninsula). The official number of the Ainu is 25,000, but unofficially is estimated at 200,000 due to many Ainu having been completely assimilated into Japanese society and, as a result, having no knowledge of their ancestry.