San Castle, FL Demographics

A map of San Castle's Population by Race

San Castle, Florida has an estimated population of 3,052, a large decrease from the 3,755 recorded in the 2020 Census. The population is 32.0% Black, 31.7% White, 30.9% Hispanic, 3.7% Asian, 1.7% Multiracial, and 0.0% Native American/Other. This demographic dot map shows the population of San Castle, with one dot drawn for each person counted by the Census, color-coded by race.

San Castle has become more racially diverse since the 2020 Census. It is considerably more diverse than Florida overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In San Castle, that probability was 67.2% in 2020 and 70.0% in the most recent ACS estimates.

San Castle is ranked the 599th most populous place in Florida, out of 956 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 Castle was ranked the 538th most populous place in the 2020 Census.

San Castle's White Population

967 residents of San Castle, or 31.7% of the population, identify as White. The share of White residents in San Castle is significantly lower than in Florida overall, where 50.4% of the population is White. San Castle ranks 848th statewide in terms of White residents as a share of the population, out of 956 places.

Since the 2020 Census, San Castle's White population has grown by an estimated 24.6%. White residents' share of San Castle's population has increased from 20.7% to 31.7%.

San Castle is less White than neighboring Hypoluxo (81.4% White), Lantana (39.7% White), South Palm Beach (87.3% White), Ocean Ridge (87.2% White), and Boynton Beach (43.2% White).

San Castle's Black Population

976 residents of San Castle, or 32.0% of the population, identify as Black. The share of Black residents in San Castle is significantly higher than in Florida overall, where 14.6% of the population is Black. San Castle ranks 77th statewide in terms of Black residents as a share of the population, out of 956 places.

Since the 2020 Census, San Castle's Black population has declined by an estimated 33.0%. Black residents' share of San Castle's population has decreased from 38.8% to 32.0%.

San Castle is more Black than neighboring Hypoluxo (7.3% Black), South Palm Beach (0.4% Black), and Ocean Ridge (0% Black). San Castle is less Black than neighboring Lantana (36.7% Black), and Boynton Beach (33.5% Black).

San Castle's Asian Population

114 residents of San Castle, or 3.7% of the population, identify as Asian. The share of Asian residents in San Castle is comparable to the share in Florida overall, where 2.9% of the population is Asian. San Castle ranks 703rd statewide in terms of Asian residents as a share of the population, out of 956 places.

Since the 2020 Census, San Castle's Asian population has grown by an estimated 356.0%. Asian residents' share of San Castle's population has increased from 0.7% to 3.7%.

San Castle is more Asian than neighboring Hypoluxo (0.3% Asian), Lantana (0.4% Asian), South Palm Beach (2% Asian), Ocean Ridge (2.3% Asian), and Boynton Beach (2.8% Asian).

San Castle's Hispanic Population

942 residents of San Castle, or 30.9% of the population, identify as Hispanic. The share of Hispanic residents in San Castle is slightly higher than in Florida overall, where 27.4% of the population is Hispanic. San Castle ranks 147th statewide in terms of Hispanic residents as a share of the population, out of 956 places.

Since the 2020 Census, San Castle's Hispanic population has declined by an estimated 31.5%. Hispanic residents' share of San Castle's population has decreased from 36.6% to 30.9%.

San Castle is more Hispanic than neighboring Hypoluxo (9.1% Hispanic), Lantana (19.5% Hispanic), South Palm Beach (7.8% Hispanic), Ocean Ridge (5.2% Hispanic), and Boynton Beach (16.8% Hispanic).

San Castle's Native American/Other Population

0 residents of San Castle, 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 Castle is comparable to the share in Florida overall, where 0.8% of the population is Native American/Other. San Castle ranks 802nd statewide in terms of Native American/Other residents as a share of the population, out of 956 places.

Since the 2020 Census, San Castle's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of San Castle's population has remained roughly unchanged at 0.0%.

San Castle is less Native American/Other than neighboring Hypoluxo (0.9% Native American/Other), Lantana (2.6% Native American/Other), Ocean Ridge (4.2% Native American/Other), and Boynton Beach (0.4% Native American/Other).

San Castle's Multiracial Population

53 residents of San Castle, or 1.7% of the population, identify as Multiracial. The share of Multiracial residents in San Castle is slightly lower than in Florida overall, where 3.8% of the population is Multiracial. San Castle ranks 674th statewide in terms of Multiracial residents as a share of the population, out of 956 places.

Since the 2020 Census, San Castle's Multiracial population has declined by an estimated 50.5%. Multiracial residents' share of San Castle's population has decreased from 2.8% to 1.7%.

San Castle is more Multiracial than neighboring Hypoluxo (1% Multiracial), Lantana (1.1% Multiracial), and Ocean Ridge (1% Multiracial). San Castle is less Multiracial than neighboring South Palm Beach (2.5% Multiracial), and Boynton Beach (3.4% 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.