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US Post Office--Big Oak Flat
18750 Hwy 120,,  209 962-6231


CLOSING SOON  
HOURS: Mon-Fri 8am-11:30am and 12am-4pm, Sat 8am-10am, Sun closed.
Conventional services, including Express Mail. The zip code for Big Oak Flat is 95305. Big Oak Flat. . Window hours: M-F 8-11:30 and noon-4, Sa 8-10. Pickup M-F 1,3:45, Sa 10.