PostNet Grass Valley578 Sutton Way Grass Valley, CA 95945 USMain Number(530) 274-7678(530) 274-7678Get DirectionsCenter InformationDay of the WeekHoursMon9:00 AM - 5:00 PMTue9:00 AM - 5:00 PMWed9:00 AM - 5:00 PMThu9:00 AM - 5:00 PMFri9:00 AM - 5:00 PMSat10:00 AM - 3:00 PMSunClosed