Castroville, CA Demographics

A map of Castroville's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Hispanic	6,132	6,872	91.3%	91.4%
Multiracial	223	61	3.3%	0.8%
White	186	359	2.8%	4.8%
Black	77	40	1.1%	0.5%
Asian	72	155	1.1%	2.1%
Native American/Other	30	28	0.4%	0.4%

Castroville, California has an estimated population of 6,720, a large decrease from the 7,515 recorded in the 2020 Census. The population is 91.3% Hispanic, 3.3% Multiracial, 2.8% White, 1.1% Black, 1.1% Asian, and 0.4% Native American/Other. This demographic dot map shows the population of Castroville, with one dot drawn for each person counted by the Census, color-coded by race.

Castroville 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 Castroville, that probability was 16.1% in 2020 and 16.5% in the most recent ACS estimates.

Castroville is ranked the 592nd 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). Castroville was ranked the 555th most populous place in the 2020 Census.

Castroville's White Population

186 residents of Castroville, or 2.8% of the population, identify as White. The share of White residents in Castroville is significantly lower than in California overall, where 33.8% of the population is White. Castroville ranks 1518th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Castroville's White population has declined by an estimated 48.2%. White residents' share of Castroville's population has decreased from 4.8% to 2.8%.

Castroville is less White than neighboring Moss Landing (100% White), Elkhorn (50.6% White), Marina (37.9% White), Boronda (11.8% White), and Las Lomas (3.2% White).

Castroville's Black Population

77 residents of Castroville, or 1.1% of the population, identify as Black. The share of Black residents in Castroville is slightly lower than in California overall, where 5.2% of the population is Black. Castroville ranks 1029th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Castroville's Black population has grown by an estimated 92.5%. Black residents' share of Castroville's population has increased from 0.5% to 1.1%.

Castroville is more Black than neighboring Moss Landing (0% Black), Elkhorn (0% Black), Boronda (0% Black), and Las Lomas (0% Black). Castroville is less Black than neighboring Marina (7.7% Black).

Castroville's Asian Population

72 residents of Castroville, or 1.1% of the population, identify as Asian. The share of Asian residents in Castroville is considerably lower than in California overall, where 15.3% of the population is Asian. Castroville ranks 825th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Castroville's Asian population has declined by an estimated 53.5%. Asian residents' share of Castroville's population has decreased from 2.1% to 1.1%.

Castroville is more Asian than neighboring Moss Landing (0% Asian), and Las Lomas (0% Asian). Castroville is less Asian than neighboring Elkhorn (1.9% Asian), Marina (12.7% Asian), and Boronda (11.3% Asian).

Castroville's Hispanic Population

6,132 residents of Castroville, or 91.3% of the population, identify as Hispanic. The share of Hispanic residents in Castroville is significantly higher than in California overall, where 40.2% of the population is Hispanic. Castroville ranks 63rd statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Castroville's Hispanic population has declined by an estimated 10.8%. Hispanic residents' share of Castroville's population has remained roughly unchanged at 91.3%.

Castroville is more Hispanic than neighboring Moss Landing (0% Hispanic), Elkhorn (36.7% Hispanic), Marina (30.1% Hispanic), and Boronda (75.5% Hispanic). Castroville is less Hispanic than neighboring Las Lomas (96.8% Hispanic).

Castroville's Native American/Other Population

30 residents of Castroville, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Castroville is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Castroville ranks 1476th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Castroville's Native American/Other population has grown by an estimated 7.1%. Native American/Other residents' share of Castroville's population has remained roughly unchanged at 0.4%.

Castroville is more Native American/Other than neighboring Moss Landing (0% Native American/Other), Elkhorn (0% Native American/Other), Boronda (0% Native American/Other), and Las Lomas (0% Native American/Other). Castroville is less Native American/Other than neighboring Marina (4% Native American/Other).

Castroville's Multiracial Population

223 residents of Castroville, or 3.3% of the population, identify as Multiracial. The share of Multiracial residents in Castroville is comparable to the share in California overall, where 4.4% of the population is Multiracial. Castroville ranks 1498th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Castroville's Multiracial population has grown by an estimated 265.6%. Multiracial residents' share of Castroville's population has increased from 0.8% to 3.3%.

Castroville is more Multiracial than neighboring Moss Landing (0% Multiracial), Boronda (1.4% Multiracial), and Las Lomas (0% Multiracial). Castroville is less Multiracial than neighboring Elkhorn (10.9% Multiracial), and Marina (7.6% 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.