US Post OfficeWrite a Review800-275-8777Be the first to review!500 S 2nd Ave, Whitehorse, SD 57661Hi there!Be the first to review!5First-class4Better than most3About what I expected2Not the worst...1DisappointingClick to RateMore Business InfoHoursRegular HoursMon-Fri 12:00pm - 2:00pm Sat 8:30am - 10:30am Sun Closed Lot Parking AvailableCategoriesPost Offices, Mail & Shipping Services Suggest an Edit