
Country: Germany Home to 266,199 people in 2025, Gelsenkirchen ranks as Germany’s 26th-most populous city. On the Emscher River, it forms part of the Ruhr, Germany’s largest urban area and a key part of the Rhine-Ruhr metropolitan region. Football fans know it as the city of Schalke 04, whose Veltins-Arena stands in the Erle district.
