Akita IPA: ; lit."Autumn field City") is the capital and most populous city of Akita Prefecture, Japan, and has been designated a core city since …Akita IPA: ; lit."Autumn field City") is the capital and most populous city of Akita Prefecture, Japan, and has been designated a core city since 1 April 1997. As of 1 August 2023, the city has an estimated population of 300,502 persons in 136,628 households and a population density of 332 persons per km². The total area of the city is 906.07 square kilometres.