Will County Demographics

A map of Will County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	411,061	418,418	58.6%	60.1%
Hispanic	138,703	130,851	19.8%	18.8%
Black	81,162	79,256	11.6%	11.4%
Asian	43,981	42,416	6.3%	6.1%
Multiracial	23,567	22,516	3.4%	3.2%
Native American/Other	2,988	2,898	0.4%	0.4%

Will County, Illinois has an estimated population of 701,462, a less than 1% change from the 696,355 recorded in the 2020 Census. The population is 58.6% White, 19.8% Hispanic, 11.6% Black, 6.3% Asian, 3.4% Multiracial, and 0.4% Native American/Other. This demographic dot map shows the population of Will County, with one dot drawn for each person counted by the Census, color-coded by race.

Will has become more racially diverse since the 2020 Census. It is slightly less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Will County, that probability was 58.6% in 2020 and 59.9% in the most recent ACS estimates.

Will County is ranked the 4th most populous county in Illinois, out of 102 counties. Will County was ranked the 4th most populous county in the 2020 Census.

Will County's White Population

411,061 residents of Will County, or 58.6% of the population, identify as White. The share of White residents in Will County is comparable to the share in Illinois overall, where 58.1% of the population is White. Will County ranks 98th statewide in terms of White residents as a share of the population, out of 102 counties.

Since the 2020 Census, Will County's White population has declined by an estimated 1.8%. White residents' share of Will County's population has decreased from 60.1% to 58.6%.

Will County is more White than neighboring Cook County (40.1% White). Will County is less White than neighboring Kankakee County (68% White), DuPage County (62.2% White), Grundy County (82.4% White), and Kendall County (62% White).

Will County's Black Population

81,162 residents of Will County, or 11.6% of the population, identify as Black. The share of Black residents in Will County is comparable to the share in Illinois overall, where 13.3% of the population is Black. Will County ranks 14th statewide in terms of Black residents as a share of the population, out of 102 counties.

Since the 2020 Census, Will County's Black population has grown by an estimated 2.4%. Black residents' share of Will County's population has remained roughly unchanged at 11.6%.

Will County is more Black than neighboring DuPage County (4.8% Black), Grundy County (2.3% Black), and Kendall County (7.6% Black). Will County is less Black than neighboring Kankakee County (14.3% Black), and Cook County (21.8% Black).

Will County's Asian Population

43,981 residents of Will County, or 6.3% of the population, identify as Asian. The share of Asian residents in Will County is comparable to the share in Illinois overall, where 5.9% of the population is Asian. Will County ranks 5th statewide in terms of Asian residents as a share of the population, out of 102 counties.

Since the 2020 Census, Will County's Asian population has grown by an estimated 3.7%. Asian residents' share of Will County's population has remained roughly unchanged at 6.3%.

Will County is more Asian than neighboring Kankakee County (1% Asian), Grundy County (0.6% Asian), and Kendall County (3.5% Asian). Will County is less Asian than neighboring DuPage County (13% Asian), and Cook County (7.9% Asian).

Will County's Hispanic Population

138,703 residents of Will County, or 19.8% of the population, identify as Hispanic. The share of Hispanic residents in Will County is comparable to the share in Illinois overall, where 18.8% of the population is Hispanic. Will County ranks 7th statewide in terms of Hispanic residents as a share of the population, out of 102 counties.

Since the 2020 Census, Will County's Hispanic population has grown by an estimated 6.0%. Hispanic residents' share of Will County's population has increased from 18.8% to 19.8%.

Will County is more Hispanic than neighboring Kankakee County (12.7% Hispanic), DuPage County (16.1% Hispanic), and Grundy County (12% Hispanic). Will County is less Hispanic than neighboring Kendall County (22.4% Hispanic), and Cook County (26.8% Hispanic).

Will County's Native American/Other Population

2,988 residents of Will County, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Will County is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Will County ranks 50th statewide in terms of Native American/Other residents as a share of the population, out of 102 counties.

Since the 2020 Census, Will County's Native American/Other population has grown by an estimated 3.1%. Native American/Other residents' share of Will County's population has remained roughly unchanged at 0.4%.

Will County is more Native American/Other than neighboring Grundy County (0.3% Native American/Other). Will County is less Native American/Other than neighboring DuPage County (0.5% Native American/Other), Kendall County (0.5% Native American/Other), and Cook County (0.5% Native American/Other).

Will County's Multiracial Population

23,567 residents of Will County, or 3.4% of the population, identify as Multiracial. The share of Multiracial residents in Will County is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Will County ranks 57th statewide in terms of Multiracial residents as a share of the population, out of 102 counties.

Since the 2020 Census, Will County's Multiracial population has grown by an estimated 4.7%. Multiracial residents' share of Will County's population has remained roughly unchanged at 3.4%.

Will County is more Multiracial than neighboring Grundy County (2.4% Multiracial), and Cook County (3% Multiracial). Will County is less Multiracial than neighboring Kankakee County (3.7% Multiracial), DuPage County (3.5% Multiracial), and Kendall County (3.9% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.