Hamakita Ward was established on April 1, 2007. As of 2009, it had a population of 90,817 persons in an area of 66.51 km2, with a population density of 1370 persons per square kilometer.
The ward office is located at 6 Nishimisono. The hall is split into north and south halls and the south hall was previously used as Kitahama Village Hall. The north hall was built as a result of five municipalities merged to form the town of Hamakita and later become the city of Hamakita.