Isahaya is a city found in Nagasaki, Japan. It is located 32.84 latitude and 130.04 longitude and it is situated at elevation 104 meters above sea level.

Isahaya has a population of 97,371 making it the 3rd biggest city in Nagasaki. It operates on the JCST time zone, which means that it follows the same time zone as Nagasaki-shi.