Three Rocks, CA Demographics

A map of Three Rocks's Population by Race

Three Rocks, California has an estimated population of 162, a dramatic decrease from the 248 recorded in the 2020 Census. The population is 100.0% Hispanic, 0.0% White, 0.0% Black, 0.0% Asian, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Three Rocks, with one dot drawn for each person counted by the Census, color-coded by race.

Three Rocks 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 Three Rocks, that probability was 2.4% in 2020 and 0.0% in the most recent ACS estimates.

Three Rocks is ranked the 1403rd 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). Three Rocks was ranked the 1350th most populous place in the 2020 Census.

Three Rocks's White Population

0 residents of Three Rocks, or 0.0% of the population, identify as White. The share of White residents in Three Rocks is significantly lower than in California overall, where 33.8% of the population is White. Three Rocks ranks 1605th statewide in terms of White residents as a share of the population, out of 1,618 places.

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

Three Rocks is less White than neighboring Cantua Creek (1.4% White), Tranquillity (9.7% White), San Joaquin (0.4% White), and Mendota (2% White).

Three Rocks's Black Population

0 residents of Three Rocks, or 0.0% of the population, identify as Black. The share of Black residents in Three Rocks is lower than in California overall, where 5.2% of the population is Black. Three Rocks ranks 1349th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Three Rocks's Black population has grown from 0 to an estimated 0. Black residents' share of Three Rocks's population has remained roughly unchanged at 0.0%.

Three Rocks is less Black than neighboring San Joaquin (4.5% Black).

Three Rocks's Asian Population

0 residents of Three Rocks, or 0.0% of the population, identify as Asian. The share of Asian residents in Three Rocks is significantly lower than in California overall, where 15.3% of the population is Asian. Three Rocks ranks 1439th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Three Rocks's Asian population has grown from 0 to an estimated 0. Asian residents' share of Three Rocks's population has remained roughly unchanged at 0.0%.

Three Rocks is less Asian than neighboring Mendota (0.3% Asian).

Three Rocks's Hispanic Population

162 residents of Three Rocks, or 100.0% of the population, identify as Hispanic. The share of Hispanic residents in Three Rocks is significantly higher than in California overall, where 40.2% of the population is Hispanic. Three Rocks ranks 4th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Three Rocks's Hispanic population has declined by an estimated 33.9%. Hispanic residents' share of Three Rocks's population has increased from 98.8% to 100.0%.

Three Rocks is more Hispanic than neighboring Cantua Creek (98.6% Hispanic), Tranquillity (88.6% Hispanic), San Joaquin (93.8% Hispanic), and Mendota (97% Hispanic).

Three Rocks's Native American/Other Population

0 residents of Three Rocks, 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 Three Rocks is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Three Rocks ranks 1212th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Three Rocks's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Three Rocks's population has decreased from 0.8% to 0.0%.

Three Rocks is less Native American/Other than neighboring Mendota (0.1% Native American/Other).

Three Rocks's Multiracial Population

0 residents of Three Rocks, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Three Rocks is slightly lower than in California overall, where 4.4% of the population is Multiracial. Three Rocks ranks 1578th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Three Rocks's Multiracial population has grown from 0 to an estimated 0. Multiracial residents' share of Three Rocks's population has remained roughly unchanged at 0.0%.

Three Rocks is less Multiracial than neighboring Tranquillity (1.7% Multiracial), San Joaquin (1.4% Multiracial), and Mendota (0.6% 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.