Montclair, CA Demographics

A map of Montclair's Population by Race

Montclair, California has an estimated population of 37,810, a less than 1% change from the 37,865 recorded in the 2020 Census. The population is 72.5% Hispanic, 10.1% Asian, 9.7% White, 5.9% Black, 1.3% Multiracial, and 0.5% Native American/Other. This demographic dot map shows the population of Montclair, with one dot drawn for each person counted by the Census, color-coded by race.

Montclair has become slightly less racially diverse since the 2020 Census. It is considerably less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Montclair, that probability was 45.8% in 2020 and 45.1% in the most recent ACS estimates.

Montclair is ranked the 226th most populous place in California, out of 1,618 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). Montclair was ranked the 227th most populous place in the 2020 Census.

Montclair's White Population

3,669 residents of Montclair, or 9.7% of the population, identify as White. The share of White residents in Montclair is significantly lower than in California overall, where 33.8% of the population is White. Montclair ranks 1430th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Montclair's White population has declined by an estimated 8.3%. White residents' share of Montclair's population has decreased from 10.6% to 9.7%.

Montclair is more White than neighboring Pomona (9.4% White). Montclair is less White than neighboring Claremont (44% White), Upland (34.2% White), La Verne (43.3% White), and Chino (16.7% White).

Montclair's Black Population

2,244 residents of Montclair, or 5.9% of the population, identify as Black. The share of Black residents in Montclair is comparable to the share in California overall, where 5.2% of the population is Black. Montclair ranks 247th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Montclair's Black population has grown by an estimated 45.9%. Black residents' share of Montclair's population has increased from 4.1% to 5.9%.

Montclair is more Black than neighboring Pomona (5.3% Black), and La Verne (3.1% Black). Montclair is less Black than neighboring Claremont (6.9% Black), and Chino (7.4% Black).

Montclair's Asian Population

3,812 residents of Montclair, or 10.1% of the population, identify as Asian. The share of Asian residents in Montclair is lower than in California overall, where 15.3% of the population is Asian. Montclair ranks 277th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Montclair's Asian population has declined by an estimated 10.1%. Asian residents' share of Montclair's population has decreased from 11.2% to 10.1%.

Montclair is less Asian than neighboring Claremont (14.4% Asian), Upland (11.1% Asian), Pomona (10.6% Asian), La Verne (10.8% Asian), and Chino (18.2% Asian).

Montclair's Hispanic Population

27,411 residents of Montclair, or 72.5% of the population, identify as Hispanic. The share of Hispanic residents in Montclair is significantly higher than in California overall, where 40.2% of the population is Hispanic. Montclair ranks 219th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Montclair's Hispanic population has remained roughly the same. Hispanic residents' share of Montclair's population has increased from 71.9% to 72.5%.

Montclair is more Hispanic than neighboring Claremont (28.8% Hispanic), Upland (43.4% Hispanic), Pomona (71.8% Hispanic), La Verne (36.3% Hispanic), and Chino (54.3% Hispanic).

Montclair's Native American/Other Population

195 residents of Montclair, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Montclair is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Montclair ranks 1310th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Montclair's Native American/Other population has declined by an estimated 25.0%. Native American/Other residents' share of Montclair's population has remained roughly unchanged at 0.5%.

Montclair is more Native American/Other than neighboring Chino (0.4% Native American/Other). Montclair is less Native American/Other than neighboring Claremont (1% Native American/Other), Upland (1.3% Native American/Other), Pomona (1% Native American/Other), and La Verne (1.1% Native American/Other).

Montclair's Multiracial Population

479 residents of Montclair, or 1.3% of the population, identify as Multiracial. The share of Multiracial residents in Montclair is slightly lower than in California overall, where 4.4% of the population is Multiracial. Montclair ranks 1382nd statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Montclair's Multiracial population has declined by an estimated 20.7%. Multiracial residents' share of Montclair's population has remained roughly unchanged at 1.3%.

Montclair is less Multiracial than neighboring Claremont (5% Multiracial), Upland (4.1% Multiracial), Pomona (2% Multiracial), La Verne (5.4% Multiracial), and Chino (2.9% 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.