List of U.S. Highways in South Dakota

	Standard South Dakota highway shields
System information
Notes	South Dakota highways are generally state-maintained.
Highway names
Interstates	Interstate X (I-X)
US Highways	U.S. Highway X (US X)
State	(State) Highway X (SD X)
System links
	South Dakota State Trunk Highway System; Interstate; US; State;

The U.S. Highways in South Dakota are the segments of the United States Numbered Highway System owned and maintained by the South Dakota Department of Transportation in the US state of South Dakota.

Quick Facts System information, Notes ...

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed
US 12	319.24	513.77	US 12 near Lemmon	US 12 at Big Stone City	01926-01-011926	current
US 14	439.75	707.71	I-90/US 14 near Spearfish	US 14 near Elkton	01925-01-011925	current
US 16	69	111	US 16 near Mount Rushmore	I-90/I-190/US 14 in Rapid City	01925-01-011925	current
US 18	451.88	727.23	US 18 near Edgemont	US 18 near Canton	01926-01-011926	current
US 77	—	—	—	—	01929-01-011929	01982-01-011982
US 81	—	—	US 81 at Yankton	I-29/US 81 near New Effington	01926-01-011926	current
US 83	—	—	US 83 near Olsonville	US 83 near Herreid	01925-01-011925	current
US 85	—	—	US 85 in the Black Hills region	US 85 near Ludlow	01926-01-011926	current
US 85E	—	—	—	—	01931-01-011931	01937-01-011937
US 183	75.17	120.97	US 183 near Wewela	I-90 near Presho	01926-01-011926	current
US 212	—	—	US 212 near Belle Fourche	US 212 east of Watertown	01925-01-011925	current
US 216	—	—	—	—	01933-01-011933	01934-01-011934
US 281	—	—	US 281 in Gregory County	US 281 north of Frederick	01926-01-011926	current
US 385	122	196	US 385 south of Oelrichs	US 85 in Deadwood	01925-01-011925	current
Former

Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed
US 14A	—	—	I-90 / I-90 Bus. / US 14 / US 85 in Spearfish	I-90 / I-90 Bus. / US 14 / SD 34 / SD 79 in Sturgis	—	—
US 16A	36.971	59.499	US 16/US 385/SD 89 in Custer	US 16 near Keystone	—	—
US 85A	—	—	—	—	—	—
Former

List