Total Population in Lake County, IL
ACS 2024 5-Year Estimates
How Lake County Compares
National Distribution
Where Lake County falls among all 3,222 U.S. counties for total population.
■ Lake County: 714,223
Ranking Context
| Rank | County | Value |
|---|---|---|
| #92 | Denver County, CO | 718,877 |
| #93 | Hudson County, NJ | 718,323 |
| #94 | Davidson County, TN | 715,388 |
| #95 | Lake County, IL | 714,223 |
| #96 | Utah County, UT | 705,400 |
| #97 | Will County, IL | 701,462 |
| #98 | Montgomery County, TX | 684,432 |
Total Population in Lake County, Illinois
Lake County, Illinois has a total population of 714,223, which ranks #95 of 3,222 out of 3,222 counties nationwide. This is 99.8% below the national value of 330M.
Within Illinois, Lake County ranks #3 of 102 out of 102 counties. This places it in the 97th percentile nationally.
Total population count from the American Community Survey. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.