Greenbush Township is located in Warren County, Illinois.

As of the 2010 census, its population was 533 and it contained 286 housing units.

[2] According to the 2010 census, the township has a total area of 35.81 square miles (92.7 km2), of which 35.45 square miles (91.8 km2) (or 98.99%) is land and 0.36 square miles (0.93 km2) (or 1.01%) is water.

This Warren County, Illinois location article is a stub.

You can help Wikipedia by expanding it.