Saga (佐賀市, Saga-shi, Japanese: [saꜜɡa]) is the capital city of Saga Prefecture, located on the island of Kyushu, Japan. Saga was the capital of Saga Domain in the Edo period, and the largest city of former Hizen Province. As of August 1, 2020, the city had an estimated population of 232,736 and a population density of 539 persons per km2. The total area is 431.84 km2.