Rutledge Township is one of thirteen townships in DeWitt County, Illinois, USA. As of the 2020 census, its population was 136 and it contained 63 housing units. Rutledge Township changed its name from Douglas Township on June 7, 1859.
According to the 2021 census gazetteer files, Rutledge Township has a total area of , of which (or 99.92%) is land and (or 0.08%) is water.
The township contains the Johnson Cemetery.
As of the 2020 census there were 136 people, 8 households, and 8 families residing in the township. The population density was . There were 63 housing units at an average density of . The racial makeup of the township was 97.79% White, 0.00% African American, 0.00% Native American, 0.74% Asian, 0.00% Pacific Islander, 0.00% from other races, and 1.47% from two or more races. Hispanic or Latino of any race were 2.21% of the population.
There were 8 households, out of which none had children under the age of 18 living with them and 100.00% were married couples living together. The average household size was 2.13 and the average family size was 2.13.
The township's age distribution consisted of 100.0% who were 65 years of age or older. For every 100 females, there were 88.9 males. For every 100 females age 18 and over, there were 88.9 males.