EntityQ2485007· pop 29· linked from 170 articlesPort CostaSign in to savecensus-designated place in Contra Costa County, California, United StatesConnectionscensus-designated place in the United StatesEntityAfrican AmericansEntitySan Mateo CountyEntityUnited States Census BureauEntityBeniciaEntityunincorporated areaEntity2000 United States CensusEntityBlackhawkEntityrace and ethnicity in the United States CensusEntityUnited StatesCountryCaliforniaEntitySan FranciscoEntitytime zoneEntitygeographic coordinate systemEntityInternational Standard Book NumberEntitySan JoseEntityDemocratic Party (United States)ConceptU.S. stateEntityOaklandEntityDaylight saving timeConceptCategories1879 establishments in CaliforniaCarquinez StraitCensus-designated places in CaliforniaCensus-designated places in Contra Costa County, CaliforniaPopulated places in the United States established in 1879