Winterthur (/ˈvɪntərtʊər/, German pronunciation: [ˈvɪntərtuːr]; French: Winterthour) is a city in the canton of Zürich in northern Switzerland. It has the country's sixth largest population, estimated at more than 100,000 people. Today Winterthur is a service and high-tech industry centre, but many people make use of its proximity to Zürich, which lies approximately 30 kilometres (19 mi) to the south-west, and only 18 minutes by train.