Post Offices in & near Yankton, South Dakota. Operating hours, locations, phone/fax number, services information.
Post Office in Yankton, South Dakota on W 25th St. Operating hours, phone number, services information, and other locations.
Address: 506 W 25th St, Yankton, SD 57078
Phone: 605-665-0626
Fax: 605-357-4906
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
