Lake County, IL Map
Official Census boundary of Lake County, Illinois (FIPS 17097). Turn on flood zones, contours, land cover and school districts, measure distances, or click any spot to inspect it.
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Lake County Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
714,223
Households
258,455
Median household income
$110,416
Median age
39.1 years
Median home value
$345,700
Median gross rent
$1,477/mo
Owner-occupied homes
74.8%
Bachelor's degree or higher
47.7%
Below poverty level
8.3%
Land area
443.7 sq mi
Population density
1,610 / sq mi