Hiraizumi is a town located in Nishiiwai District, Iwate Prefecture, Japan. As of 30 April 2020, the town had an estimated population of 7,408 and a population density of 120 inhabitants per square kilometre in 2,616 households. The total area of the town was 63.39 km2. It is noted for the Historic Monuments and Sites of Hiraizumi, which achieved UNESCO World Heritage Site status in 2011.