Grundy County, IL has a population of 50,338 people with a median age of 37.2 and a median household income of $67,162. Between 2015 and 2016 the population of Grundy County, IL grew from 50,277 to 50,338, a 0.12% increase and its median household income grew from $65,887 to $67,162, a 1.94% increase.
The population of Grundy County, IL is 87.4% White, 9.1% Hispanic, and 1.42% Black. 8.76% of the people in Grundy County, IL speak a non-English language, and 98.8% are U.S. citizens.
The largest universities in Grundy County, IL are Hair Professionals School of Cosmetology, with 18 graduates, N/A, with N/A graduates, and N/A, with N/A graduates.
The median property value in Grundy County, IL is $183,200, and the homeownership rate is 73.8%. Most people in Grundy County, IL commute by Drove Alone, and the average commute time is 27.2 minutes. The average car ownership in Grundy County, IL is 2 cars per household.
Grundy County, IL is the 30th most populated county in Illinois and borders Kankakee County, IL; Kendall County, IL; LaSalle County, IL; Livingston County, IL; and Will County, IL.