Rancho San Diego, CA Demographics

A map of Rancho San Diego's Population by Race

Rancho San Diego, California has an estimated population of 21,272, a slight decrease from the 21,858 recorded in the 2020 Census. The population is 70.4% White, 15.7% Hispanic, 6.4% Multiracial, 4.7% Asian, 1.7% Native American/Other, and 1.0% Black. This demographic dot map shows the population of Rancho San Diego, with one dot drawn for each person counted by the Census, color-coded by race.

Rancho San Diego is about as racially diverse as it was in 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 Rancho San Diego, that probability was 46.8% in 2020 and 47.3% in the most recent ACS estimates.

Rancho San Diego is ranked the 340th 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). Rancho San Diego was ranked the 332nd most populous place in the 2020 Census.

Rancho San Diego's White Population

14,982 residents of Rancho San Diego, or 70.4% of the population, identify as White. The share of White residents in Rancho San Diego is significantly higher than in California overall, where 33.8% of the population is White. Rancho San Diego ranks 549th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rancho San Diego's White population has declined by an estimated 3.1%. White residents' share of Rancho San Diego's population has remained roughly unchanged at 70.4%.

Rancho San Diego is more White than neighboring Granite Hills (69.1% White), Casa de Oro-Mount Helix (60.7% White), El Cajon (51.9% White), Bostonia (48.6% White), and Spring Valley CDP (San Diego County) (36.9% White).

Rancho San Diego's Black Population

219 residents of Rancho San Diego, or 1.0% of the population, identify as Black. The share of Black residents in Rancho San Diego is slightly lower than in California overall, where 5.2% of the population is Black. Rancho San Diego ranks 308th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rancho San Diego's Black population has declined by an estimated 68.4%. Black residents' share of Rancho San Diego's population has decreased from 3.2% to 1.0%.

Rancho San Diego is less Black than neighboring Granite Hills (3.6% Black), Casa de Oro-Mount Helix (2.7% Black), El Cajon (5.8% Black), Bostonia (8.8% Black), and Spring Valley CDP (San Diego County) (11.2% Black).

Rancho San Diego's Asian Population

1,005 residents of Rancho San Diego, or 4.7% of the population, identify as Asian. The share of Asian residents in Rancho San Diego is considerably lower than in California overall, where 15.3% of the population is Asian. Rancho San Diego ranks 557th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rancho San Diego's Asian population has grown by an estimated 15.4%. Asian residents' share of Rancho San Diego's population has increased from 4.0% to 4.7%.

Rancho San Diego is more Asian than neighboring Granite Hills (0.7% Asian), Casa de Oro-Mount Helix (3.1% Asian), and Bostonia (3.3% Asian). Rancho San Diego is less Asian than neighboring El Cajon (5.3% Asian), and Spring Valley CDP (San Diego County) (5.3% Asian).

Rancho San Diego's Hispanic Population

3,347 residents of Rancho San Diego, or 15.7% of the population, identify as Hispanic. The share of Hispanic residents in Rancho San Diego is significantly lower than in California overall, where 40.2% of the population is Hispanic. Rancho San Diego ranks 990th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rancho San Diego's Hispanic population has declined by an estimated 6.4%. Hispanic residents' share of Rancho San Diego's population has decreased from 16.4% to 15.7%.

Rancho San Diego is less Hispanic than neighboring Granite Hills (21% Hispanic), Casa de Oro-Mount Helix (26.3% Hispanic), El Cajon (29% Hispanic), Bostonia (32.8% Hispanic), and Spring Valley CDP (San Diego County) (40.7% Hispanic).

Rancho San Diego's Native American/Other Population

363 residents of Rancho San Diego, or 1.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Rancho San Diego is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Rancho San Diego ranks 1011th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rancho San Diego's Native American/Other population has grown by an estimated 64.3%. Native American/Other residents' share of Rancho San Diego's population has increased from 1.0% to 1.7%.

Rancho San Diego is more Native American/Other than neighboring Granite Hills (0.3% Native American/Other), El Cajon (1.3% Native American/Other), and Spring Valley CDP (San Diego County) (1.1% Native American/Other). Rancho San Diego is less Native American/Other than neighboring Casa de Oro-Mount Helix (2.2% Native American/Other).

Rancho San Diego's Multiracial Population

1,356 residents of Rancho San Diego, or 6.4% of the population, identify as Multiracial. The share of Multiracial residents in Rancho San Diego is comparable to the share in California overall, where 4.4% of the population is Multiracial. Rancho San Diego ranks 787th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Rancho San Diego's Multiracial population has grown by an estimated 31.3%. Multiracial residents' share of Rancho San Diego's population has increased from 4.7% to 6.4%.

Rancho San Diego is more Multiracial than neighboring Granite Hills (5.3% Multiracial), Casa de Oro-Mount Helix (4.9% Multiracial), Bostonia (4.9% Multiracial), and Spring Valley CDP (San Diego County) (4.8% Multiracial). Rancho San Diego is less Multiracial than neighboring El Cajon (6.7% 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.