Lake County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
711,885
Male
358,153
50.3%
Female
353,732
49.7%
Median Age
38.9 yrs
Avg Household Size
2.7
Foreign Born
19.5%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher31.1%
High School or Higher44.1%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
3.8%
Disability
0.0%
Non-English Home
6.2%
Married
44.6%
Lake County, IL has a population of 711,885 according to 2023 Census Bureau estimates. The median age is 38.9 years. The largest racial or ethnic group is White at 64.0% of the population. 31.1% of residents hold a bachelor's degree or higher. 19.5% of residents are foreign-born.