About This Place
Watson is a village in Effingham County, Illinois, United States. The population was 729 at the 2000 census.
Watson is located at 39°1′28″N 88°34′6″W / 39.02444°N 88.56833°W / 39.02444; -88.56833 (39.024538, -88.568394).
According to the United States Census Bureau, the village has a total area of 1.0 square miles (2.5 km²), all of it land.