Lake County Demographics

A map of Lake County's Population by Race

Lake County, Illinois had a population of 714,342 in 2020. It was 57.2% White, 6.6% Black, 8.2% Asian, 24.1% Hispanic, 0.6% Native American/Other, and 3.3% Multiracial. This map presents the population of Lake County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Lake County is the 3rd most populous county of the 102 counties in Illinois.

Lake County's White Population

408,349 residents of Lake County identify as White, or 57.2%. This makes the White share of the population of Lake County roughly similar to the White share of the population of Illinois (58.3% White). Of the 102 counties in Illinois, Lake County is ranked #100 in terms of White residents as a share of the population.

Lake County is more White than neighboring Cook County (40.5% White), and Milwaukee County (48.6% White). Lake County is less White than neighboring Kenosha County (72.1% White), Racine County (68.4% White), and DuPage County (63.4% White).

Lake County's Black Population

47,240 residents of Lake County identify as Black, or 6.6%. This makes the Black share of the population of Lake County slightly less than the Black share of the population of Illinois (13.9% Black). Of the 102 counties in Illinois, Lake County is ranked #27 in terms of Black residents as a share of the population.

Lake County is more Black than neighboring DuPage County (4.7% Black). Lake County is less Black than neighboring Kenosha County (6.8% Black), Cook County (22.5% Black), Racine County (11.4% Black), and Milwaukee County (25.6% Black).

Lake County's Asian Population

58,901 residents of Lake County identify as Asian, or 8.2%. This makes the Asian share of the population of Lake County roughly similar to the Asian share of the population of Illinois (5.8% Asian). Of the 102 counties in Illinois, Lake County is ranked #3 in terms of Asian residents as a share of the population.

Lake County is more Asian than neighboring Kenosha County (1.7% Asian), Cook County (7.7% Asian), Racine County (1.1% Asian), and Milwaukee County (4.9% Asian). Lake County is less Asian than neighboring DuPage County (12.8% Asian).

Lake County's Hispanic Population

171,962 residents of Lake County identify as Hispanic, or 24.1%. This makes the Hispanic share of the population of Lake County slightly larger than the Hispanic share of the population of Illinois (18.2% Hispanic). Of the 102 counties in Illinois, Lake County is ranked #4 in terms of Hispanic residents as a share of the population.

Lake County is more Hispanic than neighboring Kenosha County (14.5% Hispanic), Racine County (14.1% Hispanic), DuPage County (15.5% Hispanic), and Milwaukee County (16.3% Hispanic). Lake County is less Hispanic than neighboring Cook County (26.2% Hispanic).

Lake County's Native American/Other Population

4,485 residents of Lake County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.6%. This makes the Native American/Other share of the population of Lake County roughly similar to the Native American/Other share of the population of Illinois (0.5% Native American/Other). Of the 102 counties in Illinois, Lake County is ranked #11 in terms of Native American/Other residents as a share of the population.

Lake County is more Native American/Other than neighboring Cook County (0.5% Native American/Other), and DuPage County (0.5% Native American/Other). Lake County is less Native American/Other than neighboring Racine County (0.7% Native American/Other), and Milwaukee County (0.9% Native American/Other).

Lake County's Multiracial Population

23,405 residents of Lake County identify as Multiracial, or 3.3%. This makes the Multiracial share of the population of Lake County roughly similar to the Multiracial share of the population of Illinois (3.2% Multiracial). Of the 102 counties in Illinois, Lake County is ranked #55 in terms of Multiracial residents as a share of the population.

Lake County is more Multiracial than neighboring Cook County (2.6% Multiracial), and DuPage County (3.2% Multiracial). Lake County is less Multiracial than neighboring Kenosha County (4.4% Multiracial), Racine County (4.2% Multiracial), and Milwaukee County (3.7% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.