Humboldt County is a large region of big mining and mineral extraction interests alongside farming and ranching. The county seat of Winnemucca has grown from an 1800s trading post for westward-bound wagon trains along the Humboldt Trail to a hub for the area?s energy and agricultural interests as well as jumping-off for numerous outdoor adventures including fishing, hunting and ATVing. A total of approximately 100,000 acres were listed for sale in California's Humboldt County recently; the value of all Humboldt County farms and ranches for sale was approximately $203 million. Humboldt County ranks 22nd out of 58 counties in the Golden State for the total acreage of land currently advertised for sale. Among cities in Humboldt County with farms, ranches, hunting land and other land for sale, Eureka had the most land for sale. Humboldt County is California's 13th biggest county (4,052 square miles). It's located in the North Coast California region of the state.