Grundy County, Illinois
Grundy County is a county in Illinois with an estimated population of 53,578 in 2023. 9 cities, towns and Census places in it are indexed here.
Largest places in Grundy County
Morris 14,508Minooka 12,879Coal City 5,784Diamond 2,682Gardner 1,363Mazon 980Braceville 723South Wilmington 716Carbon Hill 382
About Grundy County
Grundy County is one of the counties of Illinois. County governments in Illinois handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.