New Douglas is a village in Madison County, Illinois, United States. The population was 319 at the 2010 census. It is a community that was centered on the local coal mines and farming in the early 1900s. When need for coal dropped in the 1950s the town fell back on its farming roots, mostly of corn and soybeans.
New Douglas was laid out about 1857.
New Douglas is located at 38°58′12″N 89°40′3″W (38.970100, -89.667426).
According to the 2010 census, New Douglas has a total area of 1.062 square miles (2.75 km2), of which 1.06 square miles (2.75 km2) (or 99.81%) is land and 0.002 square miles (0.01 km2) (or 0.19%) is water.
As of the census of 2000, there were 369 people, 147 households, and 105 families residing in the village. The population density was 345.6 people per square mile (133.2/km²). There were 178 housing units at an average density of 166.7 per square mile (64.2/km²). The racial makeup of the village was 97.29% White, 0.81% Native American, 0.27% Asian, and 1.63% from two or more races. Hispanic or Latino of any race were 2.98% of the population.
There were 147 households out of which 26.5% had children under the age of 18 living with them, 56.5% were married couples living together, 8.8% had a female householder with no husband present, and 27.9% were non-families.