Santa Margarita, CA Demographics

A map of Santa Margarita's Population by Race

Santa Margarita, California has an estimated population of 1,149, a large decrease from the 1,291 recorded in the 2020 Census. The population is 90.2% White, 5.1% Multiracial, 4.7% Hispanic, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Santa Margarita, with one dot drawn for each person counted by the Census, color-coded by race.

Santa Margarita has become considerably 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 Santa Margarita, that probability was 42.2% in 2020 and 18.2% in the most recent ACS estimates.

Santa Margarita is ranked the 1024th 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). Santa Margarita was ranked the 1005th most populous place in the 2020 Census.

Santa Margarita's White Population

1,036 residents of Santa Margarita, or 90.2% of the population, identify as White. The share of White residents in Santa Margarita is significantly higher than in California overall, where 33.8% of the population is White. Santa Margarita ranks 475th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Santa Margarita's White population has grown by an estimated 9.9%. White residents' share of Santa Margarita's population has increased from 73.0% to 90.2%.

Santa Margarita is more White than neighboring Garden Farms (80.9% White), California Polytechnic State University (52.2% White), Atascadero (66.2% White), San Luis Obispo (69.1% White), and Creston (0% White).

Santa Margarita's Black Population

0 residents of Santa Margarita, or 0.0% of the population, identify as Black. The share of Black residents in Santa Margarita is lower than in California overall, where 5.2% of the population is Black. Santa Margarita ranks 1305th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Santa Margarita's Black population has declined by an estimated 100.0%. Black residents' share of Santa Margarita's population has remained roughly unchanged at 0.0%.

Santa Margarita is less Black than neighboring California Polytechnic State University (1.2% Black), Atascadero (0.8% Black), and San Luis Obispo (1.2% Black).

Santa Margarita's Asian Population

0 residents of Santa Margarita, or 0.0% of the population, identify as Asian. The share of Asian residents in Santa Margarita is significantly lower than in California overall, where 15.3% of the population is Asian. Santa Margarita ranks 1337th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Santa Margarita's Asian population has declined by an estimated 100.0%. Asian residents' share of Santa Margarita's population has decreased from 0.5% to 0.0%.

Santa Margarita is less Asian than neighboring California Polytechnic State University (15.2% Asian), Atascadero (2.1% Asian), and San Luis Obispo (5.3% Asian).

Santa Margarita's Hispanic Population

54 residents of Santa Margarita, or 4.7% of the population, identify as Hispanic. The share of Hispanic residents in Santa Margarita is significantly lower than in California overall, where 40.2% of the population is Hispanic. Santa Margarita ranks 849th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Santa Margarita's Hispanic population has declined by an estimated 79.5%. Hispanic residents' share of Santa Margarita's population has decreased from 20.4% to 4.7%.

Santa Margarita is more Hispanic than neighboring Creston (0% Hispanic). Santa Margarita is less Hispanic than neighboring Garden Farms (19.1% Hispanic), California Polytechnic State University (23.8% Hispanic), Atascadero (22.5% Hispanic), and San Luis Obispo (18.4% Hispanic).

Santa Margarita's Native American/Other Population

0 residents of Santa Margarita, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Santa Margarita is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Santa Margarita ranks 860th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Santa Margarita's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Santa Margarita's population has decreased from 1.2% to 0.0%.

Santa Margarita is less Native American/Other than neighboring Atascadero (0.9% Native American/Other), and San Luis Obispo (0.7% Native American/Other).

Santa Margarita's Multiracial Population

59 residents of Santa Margarita, or 5.1% of the population, identify as Multiracial. The share of Multiracial residents in Santa Margarita is comparable to the share in California overall, where 4.4% of the population is Multiracial. Santa Margarita ranks 789th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Santa Margarita's Multiracial population has declined by an estimated 3.3%. Multiracial residents' share of Santa Margarita's population has remained roughly unchanged at 5.1%.

Santa Margarita is more Multiracial than neighboring Garden Farms (0% Multiracial), and Creston (0% Multiracial). Santa Margarita is less Multiracial than neighboring California Polytechnic State University (7.6% Multiracial), Atascadero (7.6% Multiracial), and San Luis Obispo (5.3% 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.