Mendocino County is a county located on the north coast of the U.S. state of California. The county seat and largest city is Ukiah. The county borders Humboldt County and Trinity County to the north, Tehama County, Glenn County, and Lake County to the east, Sonoma County to the south, and the Pacific Ocean to the west.
Mendocino County comprises the Ukiah, CA Micropolitan Statistical Area. It is located north of the San Francisco Bay Area and west of the Central Valley.
The county is noted for its distinctive Pacific Ocean coastline, Redwood forests, wine production, microbrews, and liberal views about the use of cannabis and support for its legalization. It is estimated that roughly one-third of the economy is based on the cultivation of marijuana.
The notable historic and recreational attraction of the "Skunk Train" connects Fort Bragg with Willits in Mendocino County via a steam-locomotive engine, along with other vehicles.