The African American population of the Bay Area used to be significant in San Francisco, where one out of seven residents were black in 1970, which had a thriving jazz scene and was known as ''Harlem of the West''. Today, they have mostly moved to parts of the East Bay and North Bay, including the cities of Oakland and Antioch. The South Park neighborhood of Santa Rosa was home to once a primarily black community until the 1980s, when many Latino immigrants settled in the area. Other cities with large numbers of African Americans include Vallejo (28%), Richmond (26%), and East Palo Alto (17%).

Is it true that is antioch ca part of the bay area?
yes