Grundy County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
52,920
Male
26,628
50.3%
Female
26,292
49.7%
Median Age
38.6 yrs
Avg Household Size
2.6
Foreign Born
3.5%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher16.1%
High School or Higher38.7%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.0%
Disability
0.0%
Non-English Home
3.9%
Married
44.6%
Grundy County, IL has a population of 52,920 according to 2023 Census Bureau estimates. The median age is 38.6 years. The largest racial or ethnic group is White at 88.4% of the population. 16.1% of residents hold a bachelor's degree or higher. 3.5% of residents are foreign-born.