Mikkeli is a town and municipality located on Lake Saimaa in Finland. It is located in the Etelä-Savo region in what used to be the province of Eastern Finland. It has a population of (around 34,000 in the town itself) and covers an area of km2, of which km2 is water. Together with Savonlinna, it is one of the largest towns in the South Savonia region and one of the concentrations in the region's hospital districts.