American Red Cross

The California Gold Country Region serves more than 3.7 million people across 26 counties, encompassing Del Norte, Siskiyou, Modoc, Humboldt, Trinity, Shasta, Lassen, Tehama, Plumas, Butte, Colusa, Glenn, Mendocino, Lake, Sierra, Yuba, Nevada, Placer, Sutter, El Dorado, Yolo, Sacramento, Amador, Alpine, Calaveras and Tuolumne counties.