Current common carriers

• BNSF Railway (BNSF)
• Canadian Pacific Railway (CP)
• D&I Railroad (DAIR)
• Dakota, Minnesota and Eastern Railroad (DME)
• Dakota, Missouri Valley and Western Railroad (DMVW)
• Dakota Southern Railway (DSRC)
• Ellis and Eastern (EE)
• Sisseton Milbank Railroad (SMRR)
• Sunflour Railroad (SNR)
• Twin Cities and Western Railroad (TCWR)

Passenger carriers

• Black Hills Central Railroad

Defunct railroads

• Black Hills and Fort Pierre Railroad
• Burlington Northern Railroad (BN)
• Chicago and North Western Railway (CNW)
• Chicago, Burlington and Quincy Railroad (CBQ)
• Chicago, Milwaukee, St. Paul and Pacific Railroad ("the Milwaukee Road") (MILW)
• Chicago, Rock Island and Pacific Railroad (RI or ROCK)
• Chicago, St. Paul, Minneapolis and Omaha Railway (CMO)
• Dakota Short Line (DAKS)
• Deadwood Central Railroad
• Fairmount and Veblen Railway
• Forest City and Gettysburg Railroad
• Fremont, Elkhorn and Missouri Valley Railroad
• Great Northern Railway (GN)
• Illinois Central Railroad (IC)
• Minneapolis and St. Louis Railway (MSTL)
• Mound City and Eastern Railway
• Rapid City, Black Hills and Western Railroad
• Soo Line (SOO)

References

• Association of American Railroads (2003), Railroad Service in South Dakota (PDF). Retrieved May 11 2005.