County Administrator Solano County, California     With a mix of rural and suburban lifestyles; rolling hillsides, waterfronts and fertile farmland; numerous local and internationally known businesses; and Travis Air Force Base; Solano County is home to a culturally diverse population of approximately 450,000 residents.  In Solano County, within the unincorporated county and the cities of Benicia, Dixon, Fairfield, Rio Vista, Suisun City, Vacaville, and Vallejo, residents and visitors alike enjoy the great quality of life attributes of affordable living, business enterprise and opportunities, open space, outdoor recreation, and proximity to the San Francisco Bay area, Lake Tahoe