The North Coast of California (also called the Redwood Empire or the Redwood Coast) is the region in Northern California that lies on the Pacific coast between San Francisco Bay and the Oregon border. It commonly includes Mendocino, Humboldt, and Del Norte counties and sometimes includes two counties from the San Francisco Bay area, Marin and Sonoma.CitiesMuch of the area is rural, and the only city within the region with a population of over 100,000 is Santa Rosa. Despite their size, many of the region's cities and towns have historical importance to the State and/or regional importance.County seats Del Norte: Crescent City Humboldt: Eureka Marin: San Rafael Mendocino: Ukiah Sonoma: Santa Rosa
