Guilford Township is one of 23 townships in Jo Daviess County, Illinois, United States.

At the 2010 census, its population was 1,206 and it contained 1,972 housing units.

[2] According to the 2010 census, the township has a total area of 37.34 square miles (96.7 km2), of which 37.15 square miles (96.2 km2) (or 99.49%) is land and 0.19 square miles (0.49 km2) (or 0.51%) is water.

[2] The township contains Singers Catholic Cemetery and a small cemetery that has the Jelly family, Taylor family and others.

Located on Cemetery Ridge Rd.