Blue Ridge Township is a township in Piatt County, Illinois, USA. As of the 2010 census, its population was 1,480 and it contained 641 housing units.\
According to the 2010 census, the township has a total area of , of which (or 99.91%) is land and (or 0.09%) is water.
As of 2023, Blue Ridge Township has a median age of 46.6 years old. Their median household income is approximately 50,000 dollars. 40% of residents hold at least a high school degree as education. However, approximately 10% of people have a bachelor's degree or higher and 30% are left with no formal education.