A county in the Austrian state of Tyrol, located in the central part of Tyrol, bordering the German state of Bavaria to the north and the Italian autonomous province of Bolzano to the south. It borders the counties of Imst and Schwarz in Austria. It has an area of 1,990.1 square kilometers and a population of 154,940 (2001). The county seat, Innsbruck, is an independent city surrounded by the county. It is divided into 65 townships.