Arnsberg is one of the five Regierungsbezirke of North Rhine-Westphalia, Germany, located in the west-central part of the country. It covers the Sauerland hills as well as the east part of the Ruhr area.
The region was founded in 1815 as a subdivision of the Prussian Province of Westphalia.
Kreise
Ennepe-Ruhr
Hochsauerland
Märkischer Kreis
Olpe
Siegen-Wittgenstein
Soest
Unna
Kreisfreie Städte
Bochum
Dortmund
Hagen
Hamm
Herne
