Lemont, IL Demographics

A map of Lemont's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	15,068	15,370	84.6%	87.2%
Hispanic	1,579	1,255	8.9%	7.1%
Asian	502	422	2.8%	2.4%
Multiracial	353	404	2.0%	2.3%
Black	296	147	1.7%	0.8%
Native American/Other	22	31	0.1%	0.2%

Lemont, Illinois has an estimated population of 17,820, a slight increase from the 17,629 recorded in the 2020 Census. The population is 84.6% White, 8.9% Hispanic, 2.8% Asian, 2.0% Multiracial, 1.7% Black, and 0.1% Native American/Other. This demographic dot map shows the population of Lemont, with one dot drawn for each person counted by the Census, color-coded by race.

Lemont has become 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 Lemont, that probability was 23.4% in 2020 and 27.6% in the most recent ACS estimates.

Lemont is ranked the 145th 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). Lemont was ranked the 145th most populous place in the 2020 Census.

Lemont's White Population

15,068 residents of Lemont, or 84.6% of the population, identify as White. The share of White residents in Lemont is significantly higher than in Illinois overall, where 58.1% of the population is White. Lemont ranks 930th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lemont's White population has declined by an estimated 2.0%. White residents' share of Lemont's population has decreased from 87.2% to 84.6%.

Lemont is more White than neighboring Lockport Heights (64.7% White), Homer Glen (84.2% White), Darien (73.2% White), Bonnie Brae (71.5% White), and Woodridge (56.8% White).

Lemont's Black Population

296 residents of Lemont, or 1.7% of the population, identify as Black. The share of Black residents in Lemont is considerably lower than in Illinois overall, where 13.3% of the population is Black. Lemont ranks 645th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lemont's Black population has grown by an estimated 101.4%. Black residents' share of Lemont's population has increased from 0.8% to 1.7%.

Lemont is more Black than neighboring Lockport Heights (0% Black), Homer Glen (1.6% Black), and Bonnie Brae (0% Black). Lemont is less Black than neighboring Darien (2.6% Black), and Woodridge (10.5% Black).

Lemont's Asian Population

502 residents of Lemont, or 2.8% of the population, identify as Asian. The share of Asian residents in Lemont is slightly lower than in Illinois overall, where 5.9% of the population is Asian. Lemont ranks 205th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lemont's Asian population has grown by an estimated 19.0%. Asian residents' share of Lemont's population has remained roughly unchanged at 2.8%.

Lemont is more Asian than neighboring Lockport Heights (0% Asian), Homer Glen (1.7% Asian), and Bonnie Brae (0% Asian). Lemont is less Asian than neighboring Darien (11.9% Asian), and Woodridge (12.1% Asian).

Lemont's Hispanic Population

1,579 residents of Lemont, or 8.9% of the population, identify as Hispanic. The share of Hispanic residents in Lemont is lower than in Illinois overall, where 18.8% of the population is Hispanic. Lemont ranks 378th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lemont's Hispanic population has grown by an estimated 25.8%. Hispanic residents' share of Lemont's population has increased from 7.1% to 8.9%.

Lemont is less Hispanic than neighboring Lockport Heights (28.9% Hispanic), Homer Glen (9.3% Hispanic), Darien (9.3% Hispanic), Bonnie Brae (23.6% Hispanic), and Woodridge (16% Hispanic).

Lemont's Native American/Other Population

22 residents of Lemont, 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 Lemont is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Lemont ranks 1054th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lemont's Native American/Other population has declined by an estimated 29.0%. Native American/Other residents' share of Lemont's population has remained roughly unchanged at 0.1%.

Lemont is more Native American/Other than neighboring Lockport Heights (0% Native American/Other), Homer Glen (0% Native American/Other), and Bonnie Brae (0% Native American/Other). Lemont is less Native American/Other than neighboring Darien (0.2% Native American/Other), and Woodridge (0.5% Native American/Other).

Lemont's Multiracial Population

353 residents of Lemont, or 2.0% of the population, identify as Multiracial. The share of Multiracial residents in Lemont is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Lemont ranks 1173rd statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Lemont's Multiracial population has declined by an estimated 12.6%. Multiracial residents' share of Lemont's population has remained roughly unchanged at 2.0%.

Lemont is less Multiracial than neighboring Lockport Heights (6.4% Multiracial), Homer Glen (3.2% Multiracial), Darien (2.8% Multiracial), Bonnie Brae (4.8% Multiracial), and Woodridge (4.1% 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.