Varkaus, before 1929 known as Warkaus, is a Middle-Savonian industrial town and municipality of Finland. It is located in the former province of Eastern Finland and is part of the North Savo region, between the city of Kuopio and the town of Savonlinna.
The municipality has a population of 19,433 (31 December 2025) and covers an area of 524.48 square kilometres (202.50 sq mi) of which 138.45 km2 (53.46 sq mi) is water. The population density is 50.39 inhabitants per square kilometre (130.5/sq mi).
The municipality is unilingually Finnish. In old Finnish 'Varkaus' meant strait, and this city is located in the lake district on straits between two parts of Lake Saimaa. An extension of the Saimaa Canal passes through the town.
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