Pepperwood is an unincorporated community in Humboldt County, California. It is located 3.5 miles northwest of Redcrest, at an elevation of 115 feet. Pepperwood is the northernmost community along the Avenue of the Giants. The ZIP Code is 95569. The community is inside area code 707. A post office operated at Pepperwood from 1887 to 1892 and from 1901 to 1965. After enduring severe flooding in 1955, the town was virtually destroyed by the Christmas flood of 1964.