Empire Township is located in McLean County, Illinois. As of the 2010 census, its population was 4,093 and it contained 1,719 housing units. Empire Township changed its name from Le Roy Township on May 17, 1858.

Geography

According to the 2010 census, the township has a total area of 49.41 square miles (128.0 km), of which 49.36 square miles (127.8 km) (or 99.90%) is land and 0.05 square miles (0.13 km) (or 0.10%) is water.

Demographics

Historical population

Census	Pop.	Note	%±
2016 (est.)	4,078
U.S. Decennial Census