Recklinghausen is the northernmost city in the Ruhr-Area and the capital of the Recklinghausen district. It borders the rural Münsterland and is characterized by large fields and farms in the north and industry in the south. Recklinghausen is the 60th-largest city in Germany and the 22nd-largest city in North Rhine-Westphalia.

Vest Recklinghausen was an ecclesiastical territory in the Holy Roman Empire, located in the center of today's North Rhine-Westphalia. The rivers Emscher and Lippe formed the border with the County of Mark and Essen Abbey in the south, and to the Bishopric of Münster in the north. In the east, a fortification secured the border with Dortmund and in the west it was bordered by the Duchy of Cleves.