South Fillmore Township, Montgomery County, Illinois
South Fillmore Township was a civil township of Montgomery County, Illinois, United States. It consisted of the northern two-thirds of survey Township 7 North, Range 2 West of the Third Principal Meridian. It was split from Fillmore Township in 1921, and annexed back into Fillmore Township in May 2017.
As of the 2010 Census, its population was 244 and it contained 116 housing units in a total area of, all land.
In November 2016, voters passed a referendum to consolidate South Fillmore Township into Fillmore Township as of the May 2017 township elections.