Westmont, IL Demographics

A map of Westmont's Population by Race

Westmont, Illinois has an estimated population of 23,724, a slight decrease from the 24,429 recorded in the 2020 Census. The population is 61.7% White, 14.6% Asian, 14.2% Hispanic, 5.9% Black, 2.9% Multiracial, and 0.6% Native American/Other. This demographic dot map shows the population of Westmont, with one dot drawn for each person counted by the Census, color-coded by race.

Westmont has become slightly more racially diverse since the 2020 Census. It is 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 Westmont, that probability was 56.8% in 2020 and 57.3% in the most recent ACS estimates.

Westmont is ranked the 98th 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). Westmont was ranked the 94th most populous place in the 2020 Census.

Westmont's White Population

14,647 residents of Westmont, or 61.7% of the population, identify as White. The share of White residents in Westmont is slightly higher than in Illinois overall, where 58.1% of the population is White. Westmont ranks 1294th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Westmont's White population has declined by an estimated 3.9%. White residents' share of Westmont's population has decreased from 62.4% to 61.7%.

Westmont is more White than neighboring Oak Brook (59.3% White). Westmont is less White than neighboring Clarendon Hills (78.8% White), Willowbrook (64.9% White), Downers Grove (80.9% White), and Hinsdale (72.7% White).

Westmont's Black Population

1,404 residents of Westmont, or 5.9% of the population, identify as Black. The share of Black residents in Westmont is lower than in Illinois overall, where 13.3% of the population is Black. Westmont ranks 180th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Westmont's Black population has declined by an estimated 16.6%. Black residents' share of Westmont's population has decreased from 6.9% to 5.9%.

Westmont is more Black than neighboring Clarendon Hills (0.4% Black), Willowbrook (3.7% Black), Downers Grove (2.7% Black), Hinsdale (1.5% Black), and Oak Brook (0.3% Black).

Westmont's Asian Population

3,466 residents of Westmont, or 14.6% of the population, identify as Asian. The share of Asian residents in Westmont is higher than in Illinois overall, where 5.9% of the population is Asian. Westmont ranks 35th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Westmont's Asian population has declined by an estimated 3.1%. Asian residents' share of Westmont's population has remained roughly unchanged at 14.6%.

Westmont is more Asian than neighboring Clarendon Hills (9.8% Asian), Downers Grove (5.6% Asian), and Hinsdale (13.7% Asian). Westmont is less Asian than neighboring Willowbrook (18.9% Asian), and Oak Brook (32.7% Asian).

Westmont's Hispanic Population

3,369 residents of Westmont, or 14.2% of the population, identify as Hispanic. The share of Hispanic residents in Westmont is slightly lower than in Illinois overall, where 18.8% of the population is Hispanic. Westmont ranks 195th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Westmont's Hispanic population has grown by an estimated 8.4%. Hispanic residents' share of Westmont's population has increased from 12.7% to 14.2%.

Westmont is more Hispanic than neighboring Clarendon Hills (6.7% Hispanic), Willowbrook (9.7% Hispanic), Downers Grove (5.9% Hispanic), Hinsdale (5.9% Hispanic), and Oak Brook (5.7% Hispanic).

Westmont's Native American/Other Population

153 residents of Westmont, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Westmont is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Westmont ranks 553rd statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Westmont's Native American/Other population has grown by an estimated 29.7%. Native American/Other residents' share of Westmont's population has remained roughly unchanged at 0.6%.

Westmont is more Native American/Other than neighboring Clarendon Hills (0.5% Native American/Other), Downers Grove (0.4% Native American/Other), and Oak Brook (0.3% Native American/Other). Westmont is less Native American/Other than neighboring Willowbrook (1.4% Native American/Other), and Hinsdale (1.3% Native American/Other).

Westmont's Multiracial Population

685 residents of Westmont, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in Westmont is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Westmont ranks 986th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Westmont's Multiracial population has declined by an estimated 2.4%. Multiracial residents' share of Westmont's population has remained roughly unchanged at 2.9%.

Westmont is more Multiracial than neighboring Willowbrook (1.4% Multiracial), and Oak Brook (1.6% Multiracial). Westmont is less Multiracial than neighboring Clarendon Hills (3.8% Multiracial), Downers Grove (4.4% Multiracial), and Hinsdale (4.8% 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.