It consists of
Marin, Mendocino,
Humboldt, Del Norte, and Trinity counties — plus portions of western Sonoma County.
Cities in the district include San Rafael, Petaluma, Novato, Windsor, Healdsburg, Ukiah, Fort Bragg, Fortuna, Eureka, Arcata, McKinleyville, and Crescent City, California.
1: GIS (congressional districts, 2013) shapefile data was created by the United States Department of the Interior. 2: Data was rendered using ArcGIS® software by Esri. 3: File developed for use on Wikipedia and elsewhere by
7partparadigm.