Jefferson South Dakota Traffic 2024-11-30 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Jefferson South Dakota North Sioux City, SD 9.23 mi Sioux City, IA 10.39 mi Big Sioux, SD 10.88 miInterstate highway exits close to Jefferson South Dakota Exit 15, i29 6.80 mi Exit 9, i29 9.25 mi Exit 4, i29 11.37 miInterstate highways close to Jefferson South Dakota i29 map 6.80 mi i229sd map 102.38 mi i90 map 113.89 miState roads close to Jefferson South Dakota IA 12 map 6.63 mi NE 12 map 10.94 mi US 20 NE map 12.93 mi