The Dakota Express at 320 N.E. Second St. in Madison is selling the cheapest midgrade unleaded gasoline near zip code 57042 this week, according to GasBuddy.com.
The station, which is 0.12 miles from zip code 57042, has midgrade unleaded priced at $2.69 per gallon for the week of November 11-17.
In greater South Dakota, the average price is $2.49 and the lowest price is $2.29. Trends show the price as stable.
The average price of unleaded gas in the state is $2.666 per gallon. The previous week, the state average was $2.65 per gallon. The average has increased since last month, when it was $2.66 per gallon – a 0.6 cent difference.
Data is accurate as of press time, but gas prices have been known to fluctuate on a daily, and even hourly, basis.


