Ashton Township is one of twenty-two townships in Lee County, Illinois, USA.

As of the 2010 census, its population was 1,185 and it contained 520 housing units.

[2] Ashton Township was originally formed as Ogle Township from Bradford Township on February 12, 1861; the name was changed to Ashton on November 7, 1867.

According to the 2010 census, the township has a total area of 17.83 square miles (46.2 km2), of which 17.81 square miles (46.1 km2) (or 99.89%) is land and 0.02 square miles (0.052 km2) (or 0.11%) is water.

[2] The township contains Ashton Cemetery.