Viitasaari is a Finnish town and municipality located in the Central Finland region. It is located between the neighbouring municipalities of Pihtipudas to the north and Äänekoski to the south. The town has a population of 5,768 and covers an area of 1,589.13 square kilometres of which 340.43 km2, or 21%, is water. There are all together 230 lakes in Viitasaari. The biggest lakes are Lake Keitele, Lake Kolima and Muuruejärvi. The population density is 4.62 inhabitants per square kilometre.