ウェブNara yae zakura. ( Prunus verecunda cultivar) Tree. Sugi ( Cryptomeria japonica) Nara Prefecture (奈良県, Nara-ken) is a prefecture of Japan located in the Kansai region of Honshu. [3] As of 2020, Nara Prefecture has a population of 1,321,805 [4] and has a geographic area of 3,691 square kilometres (1,425 sq mi ).