Gas Prices in South Dakota
Weekly average for regular unleaded gasoline
Current Average
$3.02
per gallon
Change This Week
+$0.01
vs. National Average
$0.17
National: $3.19
About Gas Prices in South Dakota
Gas prices in South Dakota depend on a few things: state fuel taxes, how close the area is to refineries and pipelines, local supply and demand, and seasonal driving patterns. The number you see is the weekly average for regular unleaded gasoline from the U.S. Energy Information Administration.
Frequently Asked Questions
Data Source
Weekly retail gasoline and diesel prices published by the U.S. Energy Information Administration, a federal statistical agency within the U.S. Department of Energy.
Source: U.S. Energy Information Administration (EIA)
Data release: Sunday, March 1, 2026 · Updates weekly (typically monday)
Data reflects weekly averages as published by the EIA. Prices at individual stations may vary. GasAlert Now is not affiliated with the EIA or any government agency.