Routes in South Dakota: fatal crashes by route
10 signed routes in South Dakota have 20 or more fatal crashes from 2015 to 2024.
| Route | Type | Fatal crashes | Deaths | Counties |
|---|---|---|---|---|
| Interstate 29 | Interstate | 51 | 53 | 9 |
| Interstate 90 | Interstate | 112 | 127 | 12 |
| State Route 34 | State highway | 24 | 28 | 10 |
| State Route 37 | State highway | 20 | 25 | 7 |
| State Route 44 | State highway | 27 | 33 | 8 |
| US Route 12 | US highway | 26 | 32 | 7 |
| US Route 14 | US highway | 34 | 37 | 9 |
| US Route 16 | US highway | 24 | 25 | 2 |
| US Route 18 | US highway | 53 | 65 | 10 |
| US Route 212 | US highway | 29 | 31 | 9 |
Note: the counts are not rates. They do not account for the length or the traffic of a route. "Counties" is the number of counties with a fatal crash on the route.