Vitudurum was a vicus in what is now Oberwinterthur during the Roman era (1st century BC to 3rd century AD). It was fortified into a castrum at the end of the 3rd century, apparently in reaction to the incipient

Subdivisions
Winterthur has seven city districts (German: Stadtkreise): 1 – Winterthur-Stadt, 2 – Oberwinterthur, 3 – Seen, 4 – Töss, 5 – Veltheim, 6 –

Historically, Winterthur was one of the homes of Switzerland's rail industry and an industrial centre, however the rail industry and other heavy industry have mostly shut down. Amongst the most significant companies was Sulzer Brothers, today's Sulzer Ltd., Sulzer AG,

Bahnhof Winterthur, the central station, is one of the busiest stations on the Swiss Railway Network with 105,000 passengers a day. As the town is close to Zürich, it is served by many trains on the local Zürich S-Bahn network. EuroCity services to Munich and regional trains to

Topography
Winterthur is located at an elevation of 439 meters (1,440 ft). The city is located in a basin south and east of the river Töss before it meets the

As of July 2008 the population of Winterthur is 100,000. More recently (as of 31 December 2020) the population was 114,220. As of 2007 23.6% of the population was made up of foreign nationals. As of 2008 the gender distribution of the

In Winterthur, about 70.7% of the population (between ages 25 and 64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule).
The town is renowned for