Izumi-ku is the northernmost ward of the city of Sendai, in Miyagi Prefecture, Japan. As of 1 July 2017, the ward had a population of 215,048 and a population density of 1470 persons per km2 in 90,336 households. The total area of the ward was 146.61 square kilometres. Izumi-ku is the twelfth-largest ward in Japan in terms of area, and third-largest in Sendai.