Guerneville is an unincorporated community and census-designated place in the Russian River Valley of Sonoma County, California. The town is historically known for the logging community, formed in the late 1800s. Guerneville is also known for its natural environment, liberal atmosphere, and proximity to wine-tasting and redwood forests. It had a population of 4,534 in 2010.

Nestled in an ancient redwood grove 2 miles East of Guerneville, along the Russian River, is a special place, a place where time stands still, a place where memories are made, a place where families come to relax and forget about the chaos of modern life. That place is Schoolhouse Canyon Campground.

Armstrong Redwoods State Natural Reserve is a state park of California in the United States established to preserve 805 acres of coast redwoods. The reserve is located in Sonoma County, just north of Guerneville.