Schmallenberg is a town in the district of Hochsauerland. Relating to its area of 188 square miles (303 square kilometres) it is the largest town belonging to an administrative Kreis (district) in the federal state of North Rhine-Westphalia, Germany.
Schmallenberg is located in the middle of the Sauerland at the mountain range Rothaargebirge.
It is situated (displacement)
Schmallenberg in the North borders to the Municipality of Bestwig and the Town of Meschede, in the East to the Town of Winterberg, in the South to the Town of Bad Berleburg, and in the West to the Municipality of Eslohe (Sauerland) and the Town of Lennestadt.