The Weekly Gas Pain Index
South Dakota Gas Pain Spotlight — Week of 2026-05-18
South Dakota drivers paid $4.40/gal this week (-2.0% vs national). Ranked #35 of 50.
South Dakota Gas Pain Spotlight
Week of 2026-05-18 · Source: EIA PADD regional average
Drivers in South Dakota are paying $4.40/gal this week — ranked #35 of 50 states. That’s 2.0% below the national average of $4.49/gal.
What it costs to fill up
A 15-gallon tank at South Dakota prices runs you $65.98. A 26-gallon truck tank costs $114.37.
Where South Dakota sits
| Metric | Value |
|---|---|
| State avg | $4.40 |
| National avg | $4.49 |
| Difference | -2.0% |
| State rank | #35 of 50 |
| Data source | EIA PADD regional average |