Bülach is a historic town and a municipality in Switzerland in the canton of Zürich. It is the administrative capital of Bülach district. It is situated in the Glatt Valley to the east of the small river Glatt and about 4 km (2.5 mi) south of the High Rhine and about 6 km (3.7 mi) north of the Zurich Airport.

The canton of Zürich is a Swiss canton in the northeastern part of the country. With a population of 1,553,423, it is the most populous canton in the country. Zürich is the de facto capital of the canton, but is not specifically mentioned in the constitution. The official language is German. The local Swiss German dialect, called Züritüütsch, is commonly spoken.