The European Metropolitan Region of Zurich (EMRZ), also Greater Zurich Area (GZA, German ), the metropolitan area surrounding Zurich, is one of Europe’s economically strongest areas and Switzerland’s economic centre. It comprises the area that can be reached within a roughly 80-minute drive from Zurich Airport. Home to many international companies, it includes most of the Canton of Zurich, and stretches as far as the Aargau  and Solothurn in the west, Thurgau, St. Gallen and parts of Grisons in the east, Schaffhausen in the north and Zug and parts of Schwyz and Glarus in the south. Roughly three million people live in the area.