PostNet Diamond Bar 8:30 AM - 7:00 PM 8:30 AM - 7:00 PM 8:30 AM - 7:00 PM 8:30 AM - 7:00 PM 8:30 AM - 7:00 PM 9:00 AM - 4:00 PMClosed Today 324 S Diamond Bar Blvd Diamond Bar, CA 91765 USMain Number(909) 860-1490(909) 860-1490Get DirectionsVisit Site