Discovery Bay, CA Demographics

A map of Discovery Bay's Population by Race

Discovery Bay, California has an estimated population of 14,911, a slight decrease from the 15,358 recorded in the 2020 Census. The population is 55.6% White, 19.2% Hispanic, 8.2% Black, 7.2% Multiracial, 7.0% Asian, and 2.9% Native American/Other. This demographic dot map shows the population of Discovery Bay, with one dot drawn for each person counted by the Census, color-coded by race.

Discovery Bay has become considerably more 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 Discovery Bay, that probability was 55.4% in 2020 and 63.7% in the most recent ACS estimates.

Discovery Bay is ranked the 405th 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). Discovery Bay was ranked the 401st most populous place in the 2020 Census.

Discovery Bay's White Population

8,287 residents of Discovery Bay, or 55.6% of the population, identify as White. The share of White residents in Discovery Bay is significantly higher than in California overall, where 33.8% of the population is White. Discovery Bay ranks 704th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Discovery Bay's White population has declined by an estimated 14.9%. White residents' share of Discovery Bay's population has decreased from 63.4% to 55.6%.

Discovery Bay is more White than neighboring Byron (50.5% White), Knightsen (54.8% White), Brentwood (42.2% White), Bethel Island (53.4% White), and Oakley (40.7% White).

Discovery Bay's Black Population

1,226 residents of Discovery Bay, or 8.2% of the population, identify as Black. The share of Black residents in Discovery Bay is slightly higher than in California overall, where 5.2% of the population is Black. Discovery Bay ranks 220th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Discovery Bay's Black population has grown by an estimated 69.8%. Black residents' share of Discovery Bay's population has increased from 4.7% to 8.2%.

Discovery Bay is more Black than neighboring Byron (0.1% Black), Knightsen (0% Black), Brentwood (7.7% Black), and Bethel Island (0% Black). Discovery Bay is less Black than neighboring Oakley (8.8% Black).

Discovery Bay's Asian Population

1,037 residents of Discovery Bay, or 7.0% of the population, identify as Asian. The share of Asian residents in Discovery Bay is lower than in California overall, where 15.3% of the population is Asian. Discovery Bay ranks 441st statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Discovery Bay's Asian population has grown by an estimated 17.8%. Asian residents' share of Discovery Bay's population has increased from 5.7% to 7.0%.

Discovery Bay is more Asian than neighboring Byron (5.3% Asian), Knightsen (0.7% Asian), and Bethel Island (2.9% Asian). Discovery Bay is less Asian than neighboring Brentwood (15.3% Asian), and Oakley (9.9% Asian).

Discovery Bay's Hispanic Population

2,861 residents of Discovery Bay, or 19.2% of the population, identify as Hispanic. The share of Hispanic residents in Discovery Bay is significantly lower than in California overall, where 40.2% of the population is Hispanic. Discovery Bay ranks 912th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Discovery Bay's Hispanic population has remained roughly the same. Hispanic residents' share of Discovery Bay's population has increased from 18.7% to 19.2%.

Discovery Bay is less Hispanic than neighboring Byron (42.6% Hispanic), Knightsen (38.2% Hispanic), Brentwood (27.1% Hispanic), Bethel Island (41.7% Hispanic), and Oakley (34.7% Hispanic).

Discovery Bay's Native American/Other Population

429 residents of Discovery Bay, or 2.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Discovery Bay is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Discovery Bay ranks 916th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Discovery Bay's Native American/Other population has grown by an estimated 153.8%. Native American/Other residents' share of Discovery Bay's population has increased from 1.1% to 2.9%.

Discovery Bay is more Native American/Other than neighboring Byron (0% Native American/Other), Knightsen (0% Native American/Other), Brentwood (1.6% Native American/Other), Bethel Island (2% Native American/Other), and Oakley (0.6% Native American/Other).

Discovery Bay's Multiracial Population

1,071 residents of Discovery Bay, or 7.2% of the population, identify as Multiracial. The share of Multiracial residents in Discovery Bay is slightly higher than in California overall, where 4.4% of the population is Multiracial. Discovery Bay ranks 372nd statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Discovery Bay's Multiracial population has grown by an estimated 8.4%. Multiracial residents' share of Discovery Bay's population has increased from 6.4% to 7.2%.

Discovery Bay is more Multiracial than neighboring Byron (1.5% Multiracial), Knightsen (6.4% Multiracial), Brentwood (6% Multiracial), Bethel Island (0% Multiracial), and Oakley (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.