Gilson is an unincorporated census-designated place in Knox County, Illinois, and is located southeast of Galesburg. It is part of the Galesburg Micropolitan Statistical Area. Gilson is located just east of Illinois Route 97 along Knox County Highway 12. The BNSF Railway runs through the town.
All kinds of people have moved into Gilson; some are united by a passion for cycling and the bicycle is their first choice of transport.