Post Offices
Post Offices in & near Long Lake, South Dakota. Operating hours, locations, phone/fax number, services information.
Long Lak Post Office
Post Office in Long Lake, South Dakota on Main St. Operating hours, phone number, services information, and other locations.
Address: 234 Main St, Long Lake, SD 57457
Phone: 605-577-6550
Fax: 605-357-4906
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Lobby Hours
Monday 1:15pmTuesday 1:15pm
Wednesday 1:15pm
Thursday 1:15pm
Friday 1:15pm
Saturday 11:15am
Sunday Closed