Galesburg is a city in Knox County, Illinois, United States. The city is 45 miles northwest of Peoria. As of the 2010 census, its population was 32,195. It is the county seat of Knox County and the principal city of the Galesburg Micropolitan Statistical Area, which includes all of Knox and Warren counties.
Galesburg is home to Knox College, a private four-year liberal arts college, and Carl Sandburg College, a two-year community college.
A 496-acre section of the city is listed on the National Register of Historic Places as the Galesburg Historic District.