Oakdale Township is located in Washington County, Illinois.

As of the 2010 census, its population was 594 and it contained 253 housing units.

[2] Oakdale has a public school called Oakdale Grade School.

According to the 2010 census, the township has a total area of 37.45 square miles (97.0 km2), of which 37.39 square miles (96.8 km2) (or 99.84%) is land and 0.06 square miles (0.16 km2) (or 0.16%) is water.

This Washington County, Illinois location article is a stub.