Grundy County Map
The County of Grundy is located in the State of Illinois. Find directions to Grundy County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Grundy County population is estimated at 50,993 people. The Grundy County time zone is Central Daylight Time which is 6 hours behind Coordinated Universal Time (UTC).
Nearby counties include Kankakee County, Kendall County, LaSalle County, Livingston County, Will County.
Top cities include Morris, Coal City, Diamond, Gardner