Live Chat AI Agent Community US 81 SD 2024-05-23 Roadnow click anywhere on map to find more poi nearby Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to US 81 SD Spencer, SD 15.46 Benton, SD 16.19 Howard, SD 17.28 Interstate highway exits close to US 81 SD Exit 357, i90 23.08 Exit 353, i90 23.15 Exit 350, i90 24.93 Interstate highways close to US 81 SD i90 map 23.08 i29 map 61.27 i229sd map 73.48 State roads close to US 81 SD US 81 SD map 12.14 SD 34 map 15.34 US 14 SD map 55.57