Seatonville is a village in Bureau County, Illinois, United States. The population was 321 at the 2020 census. It is part of the Ottawa Micropolitan Statistical Area. History A post office called Seatonville has been in operation since 1889, named for W. A. Seaton, an early settler. The town is part of a constellation of coal mining towns centered on Spring Valley and LaSalle, Illinois. The Seaton brothers, Isom and James, sank the first coal mine shaft there in 1880. The mine was sold in 1888 to the Chicago, Wilmington, and Vermilion Coal Company based in Braidwood, Illinois. During the strike of 1889, it was the only mine operating in northern Illinois. A small community of African-Americans was brought in by the company to replace deserting miners. The mine went bankrupt in 1900 and was purchased by the Spring Valley Coal Company. The town grew until the mine was closed in 1913. Geography Seatonville is located at (41.363312, -89.273094). According to the 2021 census gazetteer files, Seatonville has a total area of , of which (or 97.06%) is land and (or 2.94%) is water. Demographics As of the 2020 census there were 321 people, 188 households, and 111 families residing in the village. The population density was . There were 141 housing units at an average density of . The racial makeup of the village was 91.59% White, 0.31% Native American, 4.05% Asian, 0.93% from other races, and 3.12% from two or more races. Hispanic or Latino of any race were 4.98% of the population. There were 188 households, out of which 36.17% had children under the age of 18 living with them, 36.70% were married couples living together, 19.68% had a female householder with no husband present, and 40.96% were non-families. 39.36% of all households were made up of individuals, and 31.91% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 1.98. The village's age distribution consisted of 19.6% under the age of 18, 7.3% from 18 to 24, 20.1% from 25 to 44, 22% from 45 to 64, and 30.9% who were 65 years of age or older. The median age was 49.3 years. For every 100 females, there were 97.9 males. For every 100 females age 18 and over, there were 112.1 males. The median income for a household in the village