Orange County Demographics

A map of Orange County's Population by Race

Orange County, California has an estimated population of 3,165,820, a less than 1% change from the 3,186,989 recorded in the 2020 Census. The population is 36.9% White, 34.2% Hispanic, 22.2% Asian, 4.3% Multiracial, 1.5% Black, and 0.9% Native American/Other. This demographic dot map shows the population of Orange County, with one dot drawn for each person counted by the Census, color-coded by race.

Orange is about as racially diverse as it was in the 2020 Census. It is about as diverse as California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Orange County, that probability was 69.2% in 2020 and 69.5% in the most recent ACS estimates.

Orange County is ranked the 3rd most populous county in California, out of 58 counties. Orange County was ranked the 3rd most populous county in the 2020 Census.

Orange County's White Population

1,168,199 residents of Orange County, or 36.9% of the population, identify as White. The share of White residents in Orange County is slightly higher than in California overall, where 33.8% of the population is White. Orange County ranks 39th statewide in terms of White residents as a share of the population, out of 58 counties.

Since the 2020 Census, Orange County's White population has declined by an estimated 2.5%. White residents' share of Orange County's population has decreased from 37.6% to 36.9%.

Orange County is more White than neighboring Los Angeles County (24.7% White), Riverside County (31% White), and Kern County (29.6% White). Orange County is less White than neighboring San Diego County (42.4% White), and Ventura County (41.9% White).

Orange County's Black Population

47,885 residents of Orange County, or 1.5% of the population, identify as Black. The share of Black residents in Orange County is slightly lower than in California overall, where 5.2% of the population is Black. Orange County ranks 34th statewide in terms of Black residents as a share of the population, out of 58 counties.

Since the 2020 Census, Orange County's Black population has declined by an estimated 2.9%. Black residents' share of Orange County's population has remained roughly unchanged at 1.5%.

Orange County is less Black than neighboring Los Angeles County (7.4% Black), San Diego County (4.4% Black), Ventura County (1.7% Black), Riverside County (6% Black), and Kern County (4.8% Black).

Orange County's Asian Population

701,672 residents of Orange County, or 22.2% of the population, identify as Asian. The share of Asian residents in Orange County is higher than in California overall, where 15.3% of the population is Asian. Orange County ranks 5th statewide in terms of Asian residents as a share of the population, out of 58 counties.

Since the 2020 Census, Orange County's Asian population has remained roughly the same. Asian residents' share of Orange County's population has remained roughly unchanged at 22.2%.

Orange County is more Asian than neighboring Los Angeles County (14.9% Asian), San Diego County (12.1% Asian), Ventura County (7.1% Asian), Riverside County (6.9% Asian), and Kern County (5.1% Asian).

Orange County's Hispanic Population

1,082,931 residents of Orange County, or 34.2% of the population, identify as Hispanic. The share of Hispanic residents in Orange County is lower than in California overall, where 40.2% of the population is Hispanic. Orange County ranks 21st statewide in terms of Hispanic residents as a share of the population, out of 58 counties.

Since the 2020 Census, Orange County's Hispanic population has remained roughly the same. Hispanic residents' share of Orange County's population has remained roughly unchanged at 34.2%.

Orange County is less Hispanic than neighboring Los Angeles County (48.4% Hispanic), San Diego County (34.6% Hispanic), Ventura County (44.3% Hispanic), Riverside County (51.3% Hispanic), and Kern County (56.5% Hispanic).

Orange County's Native American/Other Population

28,589 residents of Orange County, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Orange County is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Orange County ranks 58th statewide in terms of Native American/Other residents as a share of the population, out of 58 counties.

Since the 2020 Census, Orange County's Native American/Other population has grown by an estimated 2.7%. Native American/Other residents' share of Orange County's population has remained roughly unchanged at 0.9%.

Orange County is less Native American/Other than neighboring Los Angeles County (1% Native American/Other), San Diego County (1.2% Native American/Other), Riverside County (1.2% Native American/Other), and Kern County (1.1% Native American/Other).

Orange County's Multiracial Population

136,544 residents of Orange County, or 4.3% of the population, identify as Multiracial. The share of Multiracial residents in Orange County is comparable to the share in California overall, where 4.4% of the population is Multiracial. Orange County ranks 41st statewide in terms of Multiracial residents as a share of the population, out of 58 counties.

Since the 2020 Census, Orange County's Multiracial population has grown by an estimated 9.0%. Multiracial residents' share of Orange County's population has remained roughly unchanged at 4.3%.

Orange County is more Multiracial than neighboring Los Angeles County (3.5% Multiracial), Ventura County (4.1% Multiracial), Riverside County (3.6% Multiracial), and Kern County (3% Multiracial). Orange County is less Multiracial than neighboring San Diego County (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.