Post Offices
Post Offices in & near Yankton, South Dakota. Operating hours, locations, phone/fax number, services information.
Yankton Post Office
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
Retail Hours
Monday 8:30am - 5:00pmTuesday 8:30am - 5:00pm
Wednesday 8:30am - 5:00pm
Thursday 8:30am - 5:00pm
Friday 8:30am - 5:00pm
Saturday 9:30am - 12:00pm
Sunday Closed
Lobby Hours
Monday 5:15pmTuesday 5:15pm
Wednesday 5:15pm
Thursday 5:15pm
Friday 5:15pm
Saturday 4:45pm
Sunday Closed
Last Collection Times
Monday 9:00am - 3:00pmTuesday 9:00am - 3:00pm
Wednesday 9:00am - 3:00pm
Thursday 9:00am - 3:00pm
Friday 9:00am - 3:00pm
Saturday 10:00am - 11:30am
Sunday Closed