Forsyth is a village in Macon County, Illinois, United States whose population was 2,434 at the 2000 census, and 3,007 in 2009. It is included in the Decatur, Illinois Metropolitan Statistical Area pop. 109,456.
Forsyth is located at 39°55′33″N 88°57′33″W / 39.92583°N 88.95917°W / 39.92583; -88.95917 (39.925806, -88.959282).
According to the United States Census Bureau, the village has a total area of 2.1 square miles (5.4 km²), all of it land.