Rosemont, CA Demographics

A map of Rosemont's Population by Race

Rosemont, California has an estimated population of 23,766, a slight increase from the 23,510 recorded in the 2020 Census. The population is 42.2% White, 23.3% Hispanic, 12.9% Asian, 12.2% Black, 7.2% Multiracial, and 2.2% Native American/Other. This demographic dot map shows the population of Rosemont, with one dot drawn for each person counted by the Census, color-coded by race.

Rosemont has become more racially diverse since the 2020 Census. It is more 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 Rosemont, that probability was 71.9% in 2020 and 73.0% in the most recent ACS estimates.

Rosemont is ranked the 315th 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). Rosemont was ranked the 318th most populous place in the 2020 Census.

Rosemont's White Population

10,038 residents of Rosemont, or 42.2% of the population, identify as White. The share of White residents in Rosemont is higher than in California overall, where 33.8% of the population is White. Rosemont ranks 1025th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rosemont's White population has declined by an estimated 2.5%. White residents' share of Rosemont's population has decreased from 43.8% to 42.2%.

Rosemont is more White than neighboring Vineyard (21.2% White), and Florin (13.7% White). Rosemont is less White than neighboring La Riviera (53.2% White), Arden-Arcade (48.9% White), and Mather (63.1% White).

Rosemont's Black Population

2,911 residents of Rosemont, or 12.2% of the population, identify as Black. The share of Black residents in Rosemont is higher than in California overall, where 5.2% of the population is Black. Rosemont ranks 54th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rosemont's Black population has grown by an estimated 6.1%. Black residents' share of Rosemont's population has increased from 11.7% to 12.2%.

Rosemont is more Black than neighboring La Riviera (7.6% Black), Arden-Arcade (7.8% Black), Mather (1.8% Black), Vineyard (9.7% Black), and Florin (10.1% Black).

Rosemont's Asian Population

3,058 residents of Rosemont, or 12.9% of the population, identify as Asian. The share of Asian residents in Rosemont is slightly lower than in California overall, where 15.3% of the population is Asian. Rosemont ranks 265th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rosemont's Asian population has grown by an estimated 12.5%. Asian residents' share of Rosemont's population has increased from 11.6% to 12.9%.

Rosemont is more Asian than neighboring La Riviera (10.3% Asian), Arden-Arcade (10.8% Asian), and Mather (10.1% Asian). Rosemont is less Asian than neighboring Vineyard (40% Asian), and Florin (35.1% Asian).

Rosemont's Hispanic Population

5,534 residents of Rosemont, or 23.3% of the population, identify as Hispanic. The share of Hispanic residents in Rosemont is significantly lower than in California overall, where 40.2% of the population is Hispanic. Rosemont ranks 784th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rosemont's Hispanic population has remained roughly the same. Hispanic residents' share of Rosemont's population has decreased from 23.8% to 23.3%.

Rosemont is more Hispanic than neighboring La Riviera (19.2% Hispanic), Arden-Arcade (21.2% Hispanic), Mather (15.8% Hispanic), and Vineyard (19.6% Hispanic). Rosemont is less Hispanic than neighboring Florin (30.5% Hispanic).

Rosemont's Native American/Other Population

515 residents of Rosemont, or 2.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Rosemont is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Rosemont ranks 420th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rosemont's Native American/Other population has grown by an estimated 11.0%. Native American/Other residents' share of Rosemont's population has remained roughly unchanged at 2.2%.

Rosemont is more Native American/Other than neighboring La Riviera (0.3% Native American/Other), Arden-Arcade (2.1% Native American/Other), and Mather (1.9% Native American/Other). Rosemont is less Native American/Other than neighboring Vineyard (3.1% Native American/Other), and Florin (4.6% Native American/Other).

Rosemont's Multiracial Population

1,710 residents of Rosemont, or 7.2% of the population, identify as Multiracial. The share of Multiracial residents in Rosemont is slightly higher than in California overall, where 4.4% of the population is Multiracial. Rosemont ranks 229th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rosemont's Multiracial population has remained roughly the same. Multiracial residents' share of Rosemont's population has remained roughly unchanged at 7.2%.

Rosemont is more Multiracial than neighboring Vineyard (6.4% Multiracial), and Florin (6.1% Multiracial). Rosemont is less Multiracial than neighboring La Riviera (9.3% Multiracial), and Arden-Arcade (9.2% 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.