It is a part of the municipality of Stichtse Vecht, and lies about 4 km northwest of Utrecht.

[3] It is called Oud (old) to distinguish from Zuilen which is nowadays a neighbourhood of the city of Utrecht.

[7] The Dutch Reformed Church was built in 1654, but lost in a fire in 1847, however some parts like the cartouches were salvaged.

Oud-Zuilen and the hamlet Oostwaard were transferred to Maarssen, and the remainder became a neighbourhood of Utrecht.

The pumping station Van Eijkgemaal was built between 1970 and 1971 as a replacement, and the wind mill was sold in 1974.