Jōhen, Ehime
Jōhen was a town located in Minamiuwa District, Ehime Prefecture, Japan.
As of 2004, the town of Jōhen had an estimated population of 9,751 and a density of 129.37 persons per km². The total area was 75.37 km².
On October 1, 2004, Jōhen, along with the towns of Ipponmatsu, Mishō and Nishiumi, and the village of Uchiumi, was merged to create the town of Ainan.
