Federal Government

South Dakota is represented in the U.S. House of Representatives by one representative and in the U.S. Senate by two senators. Regional offices for these officials are located in Sioux Falls.

Yankton’s federal offices include:

Federal Prison Camp
1100 Douglas Ave.
(605) 665-3262

Gavins Point National Fish Hatchery & Aquarium
31227 436th Ave.
(605) 665-3352

Missouri National Recreational River
National Park Service
508 E. 2nd St.
(605) 665-0209

Natural Resources Conservation Service
2914 Broadway Ave.
(605) 665-2662

Rural Development
2914 Broadway Ave.
(605) 665-2662

Social Security Administration
121 W. 3rd St., Ste. 101
(877) 405-3522 

U.S. Army Corps of Engineers
Located three miles West on Highway 52
(402) 667-2546
Oversees the operations of Gavins Point Dam.

U.S. Department of Agriculture
2914 Broadway Ave.
(605) 665-2662

U.S. Post Office
506 W. 25th St.
(605) 665-0626
Window hours:
Monday – Friday, 8:30 a.m. – 5 p.m.
Saturday, 9:30 a.m. – Noon