Kiowa is a city in Barber County, Kansas, United States. As of the 2020 census, the population of the city was 902. It is located 1 mile north o…Kiowa is a city in Barber County, Kansas, United States. As of the 2020 census, the population of the city was 902. It is located 1 mile north of the Kansas / Oklahoma state border. Kiowa was founded in 1872. It was named for the Kiowa people.