Humboldt County, California, gave Jill Stein her highest percentage of the vote of any county in the United States. She received 4.36% in that county, which is on California’s northern coast. Humboldt County was also Cynthia McKinney’s best county in California in 2008, and David Cobb’s best county in California in 2004. McKinney received 1.01% in Humboldt County, and Cobb received 1.26%.

Humboldt County was also the Green Party’s strongest county in the 2010 gubernatorial race, when Laura Wells received 4.01% in that county.

Just prior to the 2012 general election, 3.82% of Humboldt County’s registered voters were registered Greens. Within Humboldt County, the Green Party’s center of strength is Arcata, home to one of the California State University campuses. Within the city limits of Arcata in October 2012, 908 voters were registered Greens, out of a total of 12,540 voters in that city. The Green registration percentage in Arcata was 7.24%.