Sunyani is a city and the capital of the Sunyani Municipal District and the Bono Region of Ghana. The city is located about 105 miles southwest of Kumasi and 300 miles away from Accra. It is the sixth largest city in the country as of the 2010 census, with a population of 75,366 people. Ethnic groups such as the Akan, Northerner, Ewe, and Ga-Adangbe resideā¦Sunyani is a city and the capital of the Sunyani Municipal District and the Bono Region of Ghana. The city is located about 105 miles southwest of Kumasi and 300 miles away from Accra. It is the sixth largest city in the country as of the 2010 census, with a population of 75,366 people. Ethnic groups such as the Akan, Northerner, Ewe, and Ga-Adangbe resided in the city along with others. As of 2024, the current mayor of the municipality is Hon. Ansu Kumi.