Jönköping is a city in southern Sweden with 112,766 inhabitants. Jönköping is situated on the southern shore of Sweden's second largest lake, Vättern, in the province of Småland. The city is the seat of Jönköping Municipality, which has a population of 144,699 and is Småland's most populous municipality. Jönköping is also the seat of Jönköping County which has a population of 367,064.