South Dakota Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $3.4 | $3.54 | $3.9 | $3.9 | $2.67 |
Top 10 Gas Stations & Cheap Fuel Prices in South Dakota
Conoco in Sioux Falls (3725 N Cliff Ave)
3725 N Cliff Ave, Sioux Falls, South Dakota,
$2.75
Sep 14, 2026
0¢ Cashback
Local in Waubay (815 N Main St)
815 N Main St, Waubay, South Dakota,
$2.84
Sep 14, 2026
0¢ Cashback
Corner Pantry in Rapid City (310 E Fairmont Blvd Ste A)
310 E Fairmont Blvd Ste A, Rapid City, South Dakota,
$2.87
Sep 14, 2026
0¢ Cashback
Phillips 66 in Spearfish (2615 E Colorado Blvd)
2615 E Colorado Blvd, Spearfish, South Dakota,
$3.01
Sep 14, 2026
0¢ Cashback
Conoco in Wall (311 South Blvd )
311 South Blvd , Wall, South Dakota,
$3.09
Sep 14, 2026
0¢ Cashback
BP in Canton (110 W 5TH ST)
110 W 5TH ST, Canton, South Dakota,
$3.09
Sep 14, 2026
0¢ Cashback
Shell in Aberdeen (2105 6th Ave SE)
2105 6th Ave SE, Aberdeen, South Dakota,
$3.23
Sep 14, 2026
3¢ Cashback
Mobil in Rapid City (251 E Stumer Rd)
251 E Stumer Rd, Rapid City, South Dakota,
$3.23
Sep 14, 2026
0¢ Cashback
Cenex in Aberdeen (2303 6th Ave SE)
2303 6th Ave SE, Aberdeen, South Dakota,
$3.26
Sep 14, 2026
0¢ Cashback
Triple M Travel Plaza in Pierre (29265 US-14)
29265 US-14, Pierre, South Dakota,
$3.29
Sep 14, 2026
0¢ Cashback
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.