Osceola Township is located in Stark County, Illinois. As of the 2010 census, its population was 1,014 and it contained 428 housing units.

Geography

According to the 2010 census, the township has a total area of 35.5 square miles (92 km), of which 35.49 square miles (91.9 km) (or 99.97%) is land and 0.01 square miles (0.026 km) (or 0.03%) is water.

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	971
U.S. Decennial Census