SD

South Dakota Gas Prices

Weekly average gasoline price for South Dakota — EIA retail survey data.

Current South Dakota Gas Price

South Dakota Average

$3.894/gal

Week ending Monday, September 7, 2026

EIA does not publish a direct weekly series for South Dakota. Showing PADD 2 (Midwest) regional average.

+$0.047 (+1.2%) vs last week

vs last year: +$0.839 (+27.5%)

National average

$4.157

vs national

-$0.263

National rank

#19 of 51

Weekly retail gasoline survey data from U.S. Energy Information Administration (EIA) (eia.gov). Updated 9/14/2026, 1:09:37 AM ET. Not live pump prices — always check your local station for current prices.

12-Month Price Trend

+$0.913 (+30.6%) over 52 weeks
Sep 25: $2.981Low $2.585 · High $4.405Sep 26: $3.894

South Dakota Gas Taxes

State gas tax

30¢/gal

With federal (18.4¢)

48.4¢/gal

vs. state average

-3.7¢

South Dakota drivers pay about 30¢ per gallon in state gasoline taxes, below the 33.7¢ average across the 50 states and D.C. Figures are approximate (as of 2025) and exclude local sales taxes; verify current rates with your state revenue department.

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See the latest weekly average gasoline price for South Dakota, updated from official EIA retail survey data. Compare South Dakota's price to the national average, track a 12-month trend, and see how state fuel taxes factor in.

EIA updates weekly — not live pump prices. Where EIA does not publish a direct South Dakota series, this page shows the best available regional average with a clear note. Always check local stations for current pump prices.

Current South Dakota Gas Price

This page lists the latest weekly average retail price for regular gasoline in South Dakota, along with the survey week ending date and the trend versus last week and last year.

South Dakota Gas Taxes

Drivers in South Dakota pay about 30¢ per gallon in state gasoline taxes — roughly 48.4¢ once the 18.4¢ federal tax is included — which is 3.7¢ below the 33.7¢ average across the 50 states and D.C. (approximate, as of 2025).

South Dakota vs. National Average

Comparing South Dakota's price to the U.S. average shows whether local drivers pay more or less than the nation as a whole. State fuel taxes, regional refining capacity, and supply logistics are the main drivers of that gap.

Why Do Gas Prices Move?

Gasoline prices follow crude oil markets, refinery output, seasonal demand, and state taxes. Geopolitical events, hurricanes affecting Gulf Coast refineries, and OPEC production decisions can move prices sharply within weeks.

Latest South Dakota Energy News

South Dakota Gas Prices — Frequently Asked Questions

What is the average gas price in South Dakota?
The EIA publishes a weekly average retail price for regular gasoline, typically each Monday for the prior week. This page lists the current South Dakota weekly average with its survey date and 12-month trend. It is a survey average, not a live pump price.
What is the gas tax in South Dakota?
South Dakota levies about 30¢ per gallon in state gasoline taxes, or roughly 48.4¢ per gallon including the 18.4¢ federal tax (approximate, as of 2025). Fuel taxes are one of the largest reasons prices differ between neighboring states.
Are these live pump prices in South Dakota?
No. These are EIA weekly survey averages, not real-time prices at individual gas stations. Check local stations for current pump prices.
Why is gas expensive in South Dakota?
State fuel taxes, environmental regulations, distance from refineries, and regional supply all affect South Dakota gasoline prices relative to other states.

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