Izumi-ku (泉区?) is the northernmost ward of Sendai, in Miyagi Prefecture, Japan. Although Izumi-ku is mostly a residential area, it is also home to several college campuses; and companies such as Alps, Freescale Semiconductor, and Toppan have a large presence in the Izumi Parktown Industrial Park.
As of November 1, 2006, the population was 209,591. At 146.58 km², Izumi-ku is the twelfth-largest ward in Japan, and third-largest in Sendai (behind Aoba-ku and Taihaku-ku). The population density of ~1400 people per km² ranks in the bottom twenty nationwide, and is also less than several major cities in the United States.
Coordinates: 38°19′35″N 140°52′53″E / 38.32639°N 140.88139°E