Wataga is a village in Knox County, Illinois, United States. The population was 857 at the 2000 census. It is part of the Galesburg Micropolitan Statistical Area.
Wataga is located at 41°1′35″N 90°16′37″W / 41.02639°N 90.27694°W / 41.02639; -90.27694 (41.026282, -90.276857).
According to the United States Census Bureau, the village has a total area of 0.9 square miles (2.3 km²), all of it land.