San Miguel CDP (Contra Costa County), CA Demographics

A map of San Miguel CDP (Contra Costa County)'s Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	3,088	2,737	77.8%	76.2%
Multiracial	429	202	10.8%	5.6%
Hispanic	231	288	5.8%	8.0%
Asian	205	299	5.2%	8.3%
Black	14	23	0.4%	0.6%
Native American/Other	0	42	0.0%	1.2%

San Miguel CDP (Contra Costa County), California has an estimated population of 3,967, a large increase from the 3,591 recorded in the 2020 Census. The population is 77.8% White, 10.8% Multiracial, 5.8% Hispanic, 5.2% Asian, 0.4% Black, and 0.0% Native American/Other. This demographic dot map shows the population of San Miguel CDP (Contra Costa County), with one dot drawn for each person counted by the Census, color-coded by race.

San Miguel CDP (Contra Costa County) has become 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 San Miguel CDP (Contra Costa County), that probability was 40.2% in 2020 and 37.6% in the most recent ACS estimates.

San Miguel CDP (Contra Costa County) is ranked the 708th 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). San Miguel CDP (Contra Costa County) was ranked the 734th most populous place in the 2020 Census.

San Miguel CDP (Contra Costa County)'s White Population

3,088 residents of San Miguel CDP (Contra Costa County), or 77.8% of the population, identify as White. The share of White residents in San Miguel CDP (Contra Costa County) is significantly higher than in California overall, where 33.8% of the population is White. San Miguel CDP (Contra Costa County) ranks 368th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Miguel CDP (Contra Costa County)'s White population has grown by an estimated 12.8%. White residents' share of San Miguel CDP (Contra Costa County)'s population has increased from 76.2% to 77.8%.

San Miguel CDP (Contra Costa County) is more White than neighboring Walnut Creek (61.3% White), Castle Hill (72.3% White), Saranap (57.6% White), and Alamo (72.3% White). San Miguel CDP (Contra Costa County) is less White than neighboring Shell Ridge (85.9% White).

San Miguel CDP (Contra Costa County)'s Black Population

14 residents of San Miguel CDP (Contra Costa County), or 0.4% of the population, identify as Black. The share of Black residents in San Miguel CDP (Contra Costa County) is slightly lower than in California overall, where 5.2% of the population is Black. San Miguel CDP (Contra Costa County) ranks 951st statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Miguel CDP (Contra Costa County)'s Black population has declined by an estimated 39.1%. Black residents' share of San Miguel CDP (Contra Costa County)'s population has remained roughly unchanged at 0.4%.

San Miguel CDP (Contra Costa County) is more Black than neighboring Shell Ridge (0% Black), and Castle Hill (0% Black). San Miguel CDP (Contra Costa County) is less Black than neighboring Walnut Creek (1.8% Black), Saranap (2% Black), and Alamo (1.3% Black).

San Miguel CDP (Contra Costa County)'s Asian Population

205 residents of San Miguel CDP (Contra Costa County), or 5.2% of the population, identify as Asian. The share of Asian residents in San Miguel CDP (Contra Costa County) is considerably lower than in California overall, where 15.3% of the population is Asian. San Miguel CDP (Contra Costa County) ranks 344th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Miguel CDP (Contra Costa County)'s Asian population has declined by an estimated 31.4%. Asian residents' share of San Miguel CDP (Contra Costa County)'s population has decreased from 8.3% to 5.2%.

San Miguel CDP (Contra Costa County) is more Asian than neighboring Shell Ridge (1.9% Asian). San Miguel CDP (Contra Costa County) is less Asian than neighboring Walnut Creek (17.1% Asian), Castle Hill (15.7% Asian), Saranap (11% Asian), and Alamo (12.1% Asian).

San Miguel CDP (Contra Costa County)'s Hispanic Population

231 residents of San Miguel CDP (Contra Costa County), or 5.8% of the population, identify as Hispanic. The share of Hispanic residents in San Miguel CDP (Contra Costa County) is significantly lower than in California overall, where 40.2% of the population is Hispanic. San Miguel CDP (Contra Costa County) ranks 1374th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Miguel CDP (Contra Costa County)'s Hispanic population has declined by an estimated 19.8%. Hispanic residents' share of San Miguel CDP (Contra Costa County)'s population has decreased from 8.0% to 5.8%.

San Miguel CDP (Contra Costa County) is more Hispanic than neighboring Castle Hill (0% Hispanic). San Miguel CDP (Contra Costa County) is less Hispanic than neighboring Walnut Creek (12.4% Hispanic), Shell Ridge (10.2% Hispanic), Saranap (19.3% Hispanic), and Alamo (6.7% Hispanic).

San Miguel CDP (Contra Costa County)'s Native American/Other Population

0 residents of San Miguel CDP (Contra Costa County), 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 San Miguel CDP (Contra Costa County) is comparable to the share in California overall, where 1.2% of the population is Native American/Other. San Miguel CDP (Contra Costa County) ranks 854th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Miguel CDP (Contra Costa County)'s Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of San Miguel CDP (Contra Costa County)'s population has decreased from 1.2% to 0.0%.

San Miguel CDP (Contra Costa County) is less Native American/Other than neighboring Walnut Creek (1% Native American/Other), Saranap (3.8% Native American/Other), and Alamo (1.7% Native American/Other).

San Miguel CDP (Contra Costa County)'s Multiracial Population

429 residents of San Miguel CDP (Contra Costa County), or 10.8% of the population, identify as Multiracial. The share of Multiracial residents in San Miguel CDP (Contra Costa County) is higher than in California overall, where 4.4% of the population is Multiracial. San Miguel CDP (Contra Costa County) ranks 574th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Miguel CDP (Contra Costa County)'s Multiracial population has grown by an estimated 112.4%. Multiracial residents' share of San Miguel CDP (Contra Costa County)'s population has increased from 5.6% to 10.8%.

San Miguel CDP (Contra Costa County) is more Multiracial than neighboring Walnut Creek (6.5% Multiracial), Shell Ridge (2% Multiracial), Saranap (6.3% Multiracial), and Alamo (5.9% Multiracial). San Miguel CDP (Contra Costa County) is less Multiracial than neighboring Castle Hill (12% 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.