The four Bay Area counties who accounted for the largest share of Black residents in 1960 had the lowest share of Black residents who identified as multiracial in 2020.

Share of the Bay Area's Black residents by county, 1960 vs. 2020, and the countywide share of Black residents who identify with another racial/ethnic group, 2020

2020 data for this table includes all residents who identify as Black, regardless of whether they identified as other racial/ethnic groups as well. Racial identity data in 1960 did not include multiracial or Latino/Hispanic categories.
Source: Bay Area Equity Atlas analysis of American Community Survey microdata from IPUMS, and US Decennial Census data from Social Explorer.Get the dataCreated with Datawrapper