Forest Knolls is an unincorporated community in Marin County, California, United States. It is located southwest of Novato, at an elevation of 249 feet (76 m). For census purposes, Forest Knolls is aggregated with Lagunitas into the census-designated place Lagunitas-Forest Knolls.
The first post office at Forest Knolls opened in 1916. Forest Knolls' ZIP Code is 94933.USPS ZIP Code search function
Notable person Franklin B. Morse (1873-1929), a sportswriter and star football player, owned a home in Forest Knolls, where he died in 1929.
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