Imabari is a city in Ehime Prefecture, Japan. It is the second largest city in Ehime Prefecture. As of 31 August 2022, the city had an estimated population of 152,111 in 75947 households and a population density of 360 persons per km². The total area of the city is 468.19 square kilometres (180.77 sq mi). The population is the second largest in Ehime Prefecture after Matsuyama City.

Ehime Prefecture is a prefecture of Japan located on the island of Shikoku. Ehime Prefecture has a population of 1,334,841 and has a geographic area of 5,676 km2. Ehime Prefecture borders Kagawa Prefecture to the northeast, Tokushima Prefecture to the east, and Kōchi Prefecture to the southeast.