South Dakota State Highway 224 (SD 224) is a 7.962-mile-long (12.814 km) state highway located in south-central South Dakota. It connects the town of Alpena to SD 37.

Route description

SD 224 begins at Willow Avenue in the town of Alpena in Jerauld County. The highway travels due east on 221st Street, crossing over a railroad and leaving the town, into Sanborn County. From the county line, SD 224 continues 5 miles (8.0 km) to a junction with SD 37, where the highway ends.

History

SD 224 was designated in 1976 on a segment of former South Dakota Highway 32.

Major intersections

County	Location	mi	km	Destinations	Notes
Jerauld	Alpena	0.000	0.000	Willow Avenue
Sanborn	​	7.962	12.814	SD 37 – Huron
1.000 mi = 1.609 km; 1.000 km = 0.621 mi