 woodacre is an unincorporated town and census-designated place (cdp) located in the san geronimo valley in marin county, california. woodacre is located  south-southwest of novato, and 8 miles northwest of san rafael; the nearest incorporated town is fairfax, 4 miles east-southeast. at 364 feet (111 
1912_establishments_in_California Census-designated_places_in_California Census-designated_places_in_Marin_County,_California Populated_places_established_in_1912