Wataga is a village in Knox County, Illinois, United States. The population was 843 at the 2010 census, down from 857 in 2000. It is part of the Galesburg Micropolitan Statistical Area.According to the 2010 census, Wataga has a total area of 0.86 square miles, all land.As of the census of 2000, there were 857 people, 336 households, and 256 families residing in the village. The population density was 989.5 people per square mile. There were 370 housing units at an average density of 427.2 per square mile. The racial makeup of the village was 98.13% White, 0.35% African American, 0.12% Asian, 0.12% from other races, and 1.28% from two or more races. Hispanic or Latino of any race were 1.28% of the population.There were 336 households out of which 37.5% had children under the age of 18 living with them, 56.5% were married couples living together, 15.8% had a female householder with no husband present, and 23.8% were non-families. 20.2% of all households were made up of individuals and 8.