City of Vallejo https://en.wikipedia.org/wiki/Vallejo,_California https://www.wikidata.org/wiki/Q208445 A waterfront city in Solano County, California, located in the North Bay subregion of the San Francisco Bay Area. Vallejo is geographically the closest North Bay city to the inner East Bay, so it is sometimes associated with that region. Vallejo, CA Vallejo, California Solano County