Oberweningen is a municipality in the district of Dielsdorf in the canton of Zürich in Switzerland.

Of the rest of the land, 8.6% is settled (buildings or roads) and the remainder (0.4%) is non-productive (rivers, glaciers or mountains).

[4] The municipality is made up scattered farm houses and single family homes between the Lägern ridge and the Egg forest (Eggwald) in the Wehntal.

Most of the population (as of 2000[update]) speaks German (92.1%), with Italian being second most common ( 1.7%) and Albanian being third ( 1.2%).

[4] The historical population is given in the following table:[3] Schöfflisdorf-Oberweningen railway station is a stop of the Zürich S-Bahn on the lines S5 and S55.