McHenry, IL Demographics

A map of McHenry's Population by Race

McHenry, Illinois has an estimated population of 28,074, an increase from the 27,135 recorded in the 2020 Census. The population is 79.1% White, 15.8% Hispanic, 2.7% Multiracial, 1.7% Asian, 0.6% Black, and 0.1% Native American/Other. This demographic dot map shows the population of McHenry, with one dot drawn for each person counted by the Census, color-coded by race.

McHenry has become less 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 McHenry, that probability was 36.7% in 2020 and 34.8% in the most recent ACS estimates.

McHenry is ranked the 73rd 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). McHenry was ranked the 80th most populous place in the 2020 Census.

McHenry's White Population

22,219 residents of McHenry, or 79.1% of the population, identify as White. The share of White residents in McHenry is significantly higher than in Illinois overall, where 58.1% of the population is White. McHenry ranks 1144th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, McHenry's White population has grown by an estimated 5.1%. White residents' share of McHenry's population has increased from 77.9% to 79.1%.

McHenry is more White than neighboring McCullom Lake (77.4% White), Prairie Grove (76% White), and Wonder Lake (72.1% White). McHenry is less White than neighboring Ringwood (91.8% White), and Johnsburg (87.8% White).

McHenry's Black Population

158 residents of McHenry, or 0.6% of the population, identify as Black. The share of Black residents in McHenry is considerably lower than in Illinois overall, where 13.3% of the population is Black. McHenry ranks 567th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, McHenry's Black population has declined by an estimated 43.6%. Black residents' share of McHenry's population has remained roughly unchanged at 0.6%.

McHenry is more Black than neighboring McCullom Lake (0% Black), Ringwood (0.5% Black), Prairie Grove (0.5% Black), and Wonder Lake (0% Black). McHenry is less Black than neighboring Johnsburg (1.6% Black).

McHenry's Asian Population

485 residents of McHenry, or 1.7% of the population, identify as Asian. The share of Asian residents in McHenry is slightly lower than in Illinois overall, where 5.9% of the population is Asian. McHenry ranks 258th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, McHenry's Asian population has declined by an estimated 1.6%. Asian residents' share of McHenry's population has remained roughly unchanged at 1.7%.

McHenry is more Asian than neighboring McCullom Lake (0% Asian), Ringwood (0.5% Asian), Johnsburg (0.8% Asian), and Wonder Lake (0.9% Asian). McHenry is less Asian than neighboring Prairie Grove (15.7% Asian).

McHenry's Hispanic Population

4,443 residents of McHenry, or 15.8% of the population, identify as Hispanic. The share of Hispanic residents in McHenry is slightly lower than in Illinois overall, where 18.8% of the population is Hispanic. McHenry ranks 166th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, McHenry's Hispanic population has grown by an estimated 5.8%. Hispanic residents' share of McHenry's population has remained roughly unchanged at 15.8%.

McHenry is more Hispanic than neighboring Ringwood (3.6% Hispanic), Johnsburg (3.6% Hispanic), and Prairie Grove (2.6% Hispanic). McHenry is less Hispanic than neighboring McCullom Lake (17.5% Hispanic), and Wonder Lake (22.8% Hispanic).

McHenry's Native American/Other Population

23 residents of McHenry, or 0.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in McHenry is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. McHenry ranks 973rd statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, McHenry's Native American/Other population has declined by an estimated 64.1%. Native American/Other residents' share of McHenry's population has remained roughly unchanged at 0.1%.

McHenry is more Native American/Other than neighboring McCullom Lake (0% Native American/Other), Ringwood (0% Native American/Other), and Prairie Grove (0% Native American/Other). McHenry is less Native American/Other than neighboring Johnsburg (0.7% Native American/Other), and Wonder Lake (2.7% Native American/Other).

McHenry's Multiracial Population

746 residents of McHenry, or 2.7% of the population, identify as Multiracial. The share of Multiracial residents in McHenry is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. McHenry ranks 716th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, McHenry's Multiracial population has declined by an estimated 21.8%. Multiracial residents' share of McHenry's population has decreased from 3.5% to 2.7%.

McHenry is more Multiracial than neighboring Wonder Lake (1.6% Multiracial). McHenry is less Multiracial than neighboring McCullom Lake (5.1% Multiracial), Ringwood (3.6% Multiracial), Johnsburg (5.6% Multiracial), and Prairie Grove (5.3% 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.