Grayslake, IL Demographics

A map of Grayslake's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	14,878	15,180	71.1%	71.4%
Hispanic	2,140	2,851	10.2%	13.4%
Black	1,784	920	8.5%	4.3%
Asian	1,063	1,381	5.1%	6.5%
Multiracial	1,021	805	4.9%	3.8%
Native American/Other	43	111	0.2%	0.5%

Grayslake, Illinois has an estimated population of 20,929, a slight decrease from the 21,248 recorded in the 2020 Census. The population is 71.1% White, 10.2% Hispanic, 8.5% Black, 5.1% Asian, 4.9% Multiracial, and 0.2% Native American/Other. This demographic dot map shows the population of Grayslake, with one dot drawn for each person counted by the Census, color-coded by race.

Grayslake has become slightly more racially diverse since the 2020 Census. It is considerably 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 Grayslake, that probability was 46.4% in 2020 and 47.2% in the most recent ACS estimates.

Grayslake is ranked the 115th most populous place in Illinois, out of 1,461 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Grayslake was ranked the 117th most populous place in the 2020 Census.

Grayslake's White Population

14,878 residents of Grayslake, or 71.1% of the population, identify as White. The share of White residents in Grayslake is considerably higher than in Illinois overall, where 58.1% of the population is White. Grayslake ranks 1222nd statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Grayslake's White population has declined by an estimated 2.0%. White residents' share of Grayslake's population has remained roughly unchanged at 71.1%.

Grayslake is more White than neighboring Hainesville (57.1% White), Round Lake Park (43.9% White), Gages Lake (65.8% White), and Round Lake Beach (34.5% White). Grayslake is less White than neighboring Third Lake (82.2% White).

Grayslake's Black Population

1,784 residents of Grayslake, or 8.5% of the population, identify as Black. The share of Black residents in Grayslake is slightly lower than in Illinois overall, where 13.3% of the population is Black. Grayslake ranks 231st statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Grayslake's Black population has grown by an estimated 93.9%. Black residents' share of Grayslake's population has increased from 4.3% to 8.5%.

Grayslake is more Black than neighboring Hainesville (4.8% Black), Third Lake (0.1% Black), Round Lake Park (0.8% Black), Gages Lake (5.2% Black), and Round Lake Beach (4.2% Black).

Grayslake's Asian Population

1,063 residents of Grayslake, or 5.1% of the population, identify as Asian. The share of Asian residents in Grayslake is comparable to the share in Illinois overall, where 5.9% of the population is Asian. Grayslake ranks 89th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Grayslake's Asian population has declined by an estimated 23.0%. Asian residents' share of Grayslake's population has decreased from 6.5% to 5.1%.

Grayslake is more Asian than neighboring Third Lake (2.2% Asian), Round Lake Park (0.8% Asian), and Round Lake Beach (2.2% Asian). Grayslake is less Asian than neighboring Hainesville (9% Asian), and Gages Lake (6.8% Asian).

Grayslake's Hispanic Population

2,140 residents of Grayslake, or 10.2% of the population, identify as Hispanic. The share of Hispanic residents in Grayslake is lower than in Illinois overall, where 18.8% of the population is Hispanic. Grayslake ranks 190th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Grayslake's Hispanic population has declined by an estimated 24.9%. Hispanic residents' share of Grayslake's population has decreased from 13.4% to 10.2%.

Grayslake is less Hispanic than neighboring Hainesville (26.8% Hispanic), Third Lake (11.7% Hispanic), Round Lake Park (49.5% Hispanic), Gages Lake (14.7% Hispanic), and Round Lake Beach (56.1% Hispanic).

Grayslake's Native American/Other Population

43 residents of Grayslake, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Grayslake is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Grayslake ranks 488th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Grayslake's Native American/Other population has declined by an estimated 61.3%. Native American/Other residents' share of Grayslake's population has remained roughly unchanged at 0.2%.

Grayslake is more Native American/Other than neighboring Hainesville (0% Native American/Other), Round Lake Park (0% Native American/Other), and Gages Lake (0.1% Native American/Other). Grayslake is less Native American/Other than neighboring Third Lake (0.4% Native American/Other), and Round Lake Beach (1% Native American/Other).

Grayslake's Multiracial Population

1,021 residents of Grayslake, or 4.9% of the population, identify as Multiracial. The share of Multiracial residents in Grayslake is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Grayslake ranks 603rd statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Grayslake's Multiracial population has grown by an estimated 26.8%. Multiracial residents' share of Grayslake's population has increased from 3.8% to 4.9%.

Grayslake is more Multiracial than neighboring Hainesville (2.4% Multiracial), Third Lake (3.4% Multiracial), and Round Lake Beach (2.1% Multiracial). Grayslake is less Multiracial than neighboring Round Lake Park (5% Multiracial), and Gages Lake (7.4% 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.