22,954 (Dec 31, 2008)
(as of March 2014)
Dietikon is the fifth biggest city of the canton of Zurich in Switzerland, after Zurich, Winterthur, Uster and Dubendorf. It is the capital of the same-named district of Dietikon and part of the Zurich metropolitan area.
The industrial city Dietikon is situated at an altitude of 388 m (1,273 ft) at the confluence of the Reppisch and Limmat rivers, located in the Limmat Valley (German: Limmattal), along the railway line from Zurich to Baden. Here and in the neighboring region, Spreitenbach, is also the large rail freight marshalling yard Limmattal.
Dietikon has an area of 9.3 square kilometers (3.6 sq mi). Of this area, 17.2% is used for agricultural purposes, while 27% is forested. Of the rest of the land, 49.1% is settled (buildings or roads) and the remainder (6.7%) is non-productive (rivers, glaciers or mountains). In 1996 housing and buildings made up 33.8% of the total area, while transportation infrastructure made up the rest (15.3%). Of the total unproductive area, water (streams and lakes) made up 4.9% of the area. As of 2007 40.7% of the total municipal area was undergoing some type of construction.
The largest and best known forests of the municipality include the Honeret, Guggenbuehl and Rohrenmoos.
The Honeret forest lies on a side moraine of the Linth glacier ("Linthgletscher"). There are over 200 prominent stones therefrom up to foundling boulders as big as 25 m2 (270 sq ft). The Honeret and the Guggenbuehl-Wald are separated by only one main street. In the forest, there are a few sources that form the brooks Tobelbach and Stoffelbach and flow into the Reppisch afterwards. Also in the forest lies the forest cottage "Lorenzhutte."
The Guggenbuehl forest lies completely in Dietikon. In the forest, the pond "Giigelibode" lies. It has neither influx nor drains. A Vita course is in the forest.
Dietikon is first mentioned in 1100 as Dietinchovin. In Dietikon there are several Roman ruins and also the Fahr Benedictine Convent, given by the Lords of Regensberg around 1130 AD, with a cloister church dating from the years 1743 to 1746. The Second Battle of Zurich was fought in Dietikon (September 1799) and the town name is now inscribed at the pillar of the Arc de Triomphe in Paris, France.