The area of the municipality of Drolshagen is characterized by heavily wooded low mountain ranges with altitudes close to 500 metres, flat tops and broad valleys in between.

To the west where the municipal area ends is a steep drop of altitude and the view is open towards the plains of the river Rhine in the distance.

Drolshagen borders on the following towns and communities, clockwise beginning in the northwest: Gummersbach, Meinerzhagen, Attendorn, Olpe, Wenden, Reichshof and Bergneustadt.

The highest hills are: Several named and a number of unnamed streams and brooks flow through the valleys of the municipality of Drolshagen: The Brachtpe empties into the Biggesee and the Herpel into the Listertalsperre.

In 1413, the townsfolk and Denklingen Castle were under the control of the Duke of Berg as part of the feudal system existing at the time.

Drolshagen was granted town rights on 2 March 1477 by Ruprecht, Archbishop of Cologne, thus entitling it to a market and walls.

The Cistercian monastery, endowed in 1235, fell into a quarrel with the town beginning in 1550 over who had rights to the St.-Clemens-Kirche (church), which in turn led to a trial in Rome.

Joure/De Fryske Marren, Netherlands, since October 1967 Helmsdorf, Thuringia, Germany ("friendship") Source[5] The Drolshagen area is home to many sport clubs.