District

SENATE DISTRICT 03 

The Third Senate District includes the cities of Martinez and Pleasant Hill in Contra Costa County; American Canyon, Calistoga, Napa, and St. Helena in Napa County; Benicia, Dixon, Fairfield, Rio Vista, Suisun City, Vacaville, and Vallejo, in Solano County; Cotati, Petaluma, Rohnert Park, and Sonoma in Sonoma County; Davis, Winters, and Woodland in Yolo County; as well as Isleton in Sacramento County.