Home › States › South Dakota › WatertownE85 Stations in Watertown, SD
There are 8 public E85 (flex fuel / ethanol) stations in Watertown, South Dakota. Addresses and directions are listed below — or open the interactive map to see them by location.
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Cenex - Sioux Valley Coop Highway 212
1601 9th Ave SE, Watertown, SD 57201
Convenience Store · Also: E30-E35 · Confirmed 2025-06-06
Cowboy Country Store
504 9th Ave SE, Watertown, SD 57201
Convenience Store · Also: E20-E25 E30-E35 · Confirmed 2025-08-12
Cowboy Country Store
1400 4th St NE, Watertown, SD 57201
Convenience Store · Also: E20-E25 E30-E35 · Confirmed 2025-08-12
Prairie Stop
1007 9th Ave SW, Watertown, SD 57201
Convenience Store · Also: E15 E30-E35 · Confirmed 2025-08-12
Sioux Valley Co-op - Cenex
220 10th St NW, Watertown, SD 57201
Co-op · Also: E30-E35 · Confirmed 2025-09-12
Sioux Valley Co-op - Cenex
1016 5th St SE, Watertown, SD 57201
Co-op · Also: E30-E35 · Confirmed 2025-09-12
Stone's Truck Stop
3801 9th Ave SE, Watertown, SD 57201
Truck Stop · Also: E15 E30-E35 · Confirmed 2025-08-12
Tip Top
46399 US Highway 212, Watertown, SD 57201
Convenience Store · Also: E20-E25 E30-E35 · Confirmed 2025-08-12
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