ZIP Code 61436
About Gilson
Gilson is an unincorporated census-designated place in Knox County, Illinois, and is located southeast of Galesburg. As of the 2020 Census, its population was 156. 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.
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Area Profile
US Census (ACS 5-year · Gazetteer)
810
population
$74,688
median household income
13
people / sq mi
$186,500
median home value
59.1
median age
428
housing units
359
households
61.2
land area (sq mi)