Kuopio is a city and a municipality located in the region of Northern Savonia, Finland. A population of 112,158 makes it the ninth biggest city in the country. The city has a total area of 2,775.73 square kilometres (1,071.72 sq mi), of which 719.85 km2 (277.94 sq mi) is water and half forest. The population density is only 70/km2 (180/sq mi), but the city's urban areas are populated very densely, nationally second only to capital Helsinki.
Since 1969 Kuopio has grown extensively through municipality mergers. Kuopio’s population surpassed the 100,000 mark when the town of Nilsiä joined Kuopio at the beginning of 2013.