Gas Prices in South Dakota
The average price of a gallon of regular gasoline, how it’s moving, and how South Dakota stacks up against the rest of the country.
Week of June 15, 2026 · estimated from regional trend
10.6¢ below
The U.S. average is $4.05. South Dakota drivers pay less than the typical American.
South Dakota is the 23rd-cheapest place to buy regular gas of 51 states and D.C. — equivalently, the 29th-most-expensive.
Ranked on current-week prices (week of June 15, 2026). Cheapest: Texas ($3.43). Most expensive: Hawaii ($6.01).
South Dakota gas prices over time
EIA publishes only a yearly average for South Dakota, so this shows the annual history; the most recent point is the current regional estimate, matching the headline above. Values before 2000 are approximate. Toggle between the price at the pump and constant 2025 dollars.
View the data (56 points · annual)
| Date | Nominal | 2025 $ |
|---|---|---|
| 1970-01-01 * | $0.36 | $2.96 |
| 1971-01-01 * | $0.35 | $2.76 |
| 1972-01-01 * | $0.31 | $2.42 |
| 1973-01-01 * | $0.37 | $2.69 |
| 1974-01-01 * | $0.51 | $3.30 |
| 1975-01-01 * | $0.57 | $3.38 |
| 1976-01-01 * | $0.59 | $3.33 |
| 1977-01-01 * | $0.62 | $3.27 |
| 1978-01-01 * | $0.64 | $3.17 |
| 1979-01-01 * | $0.90 | $3.97 |
| 1980-01-01 * | $1.22 | $4.77 |
| 1981-01-01 * | $1.35 | $4.78 |
| 1982-01-01 * | $1.29 | $4.30 |
| 1983-01-01 * | $1.15 | $3.71 |
| 1984-01-01 * | $1.12 | $3.47 |
| 1985-01-01 * | $1.11 | $3.33 |
| 1986-01-01 * | $0.82 | $2.41 |
| 1987-01-01 * | $0.86 | $2.44 |
| 1988-01-01 * | $0.90 | $2.44 |
| 1989-01-01 * | $1.02 | $2.66 |
| 1990-01-01 * | $1.13 | $2.79 |
| 1991-01-01 * | $1.07 | $2.54 |
| 1992-01-01 * | $1.04 | $2.39 |
| 1993-01-01 * | $1.06 | $2.37 |
| 1994-01-01 * | $1.07 | $2.33 |
| 1995-01-01 * | $1.10 | $2.33 |
| 1996-01-01 * | $1.19 | $2.44 |
| 1997-01-01 * | $1.22 | $2.45 |
| 1998-01-01 * | $1.04 | $2.05 |
| 1999-01-01 * | $1.11 | $2.14 |
| 2000-01-01 | $1.52 | $2.84 |
| 2001-01-01 | $1.47 | $2.67 |
| 2002-01-01 | $1.35 | $2.41 |
| 2003-01-01 | $1.51 | $2.64 |
| 2004-01-01 | $1.78 | $3.04 |
| 2005-01-01 | $2.18 | $3.60 |
| 2006-01-01 | $2.48 | $3.96 |
| 2007-01-01 | $2.76 | $4.28 |
| 2008-01-01 | $3.10 | $4.64 |
| 2009-01-01 | $2.31 | $3.46 |
| 2010-01-01 | $2.76 | $4.08 |
| 2011-01-01 | $3.51 | $5.03 |
| 2012-01-01 | $3.58 | $5.03 |
| 2013-01-01 | $3.50 | $4.83 |
| 2014-01-01 | $3.34 | $4.55 |
| 2015-01-01 | $2.40 | $3.26 |
| 2016-01-01 | $2.13 | $2.86 |
| 2017-01-01 | $2.40 | $3.15 |
| 2018-01-01 | $2.66 | $3.41 |
| 2019-01-01 | $2.53 | $3.19 |
| 2020-01-01 | $2.08 | $2.58 |
| 2021-01-01 | $2.94 | $3.49 |
| 2022-01-01 | $3.87 | $4.25 |
| 2023-01-01 | $3.43 | $3.62 |
| 2024-01-01 | $3.23 | $3.32 |
| 2026-06-15 * | $3.95 | $4.05 |
Current average
EIA does not publish separate weekly grade or diesel prices for South Dakota. The headline above is an estimate for the current week; EIA’s most recent published annual average for South Dakota was $3.23 in 2024. For live grade-level pricing, see a weekly-reporting state such as California.
The highs and lows
South Dakota vs. the nation and its neighbors
Latest comparable annual state averages for regular gasoline (2024, EIA SEDS) — a consistent all-51 basis, distinct from the current-week estimate above.
South Dakota gas prices, answered
- What is the average price of gas in South Dakota right now?
- As of the week of June 15, 2026 (estimated from regional trends), the average price of regular gasoline in South Dakota is $3.95 per gallon, according to U.S. Energy Information Administration data.
- Is gas more expensive in South Dakota than the national average?
- South Dakota's average of $3.95 is 10.6¢ below the U.S. average of $4.05 per gallon for regular gasoline.
- What is the highest gas price ever recorded in South Dakota?
- The highest average regular gasoline price recorded for South Dakota in this series was $3.87 per gallon in 2022. The lowest was $0.31 in 1972.
- Are gas prices in South Dakota going up or down?
- Over the latest week, the average price of regular gasoline in South Dakota fell to $3.95 per gallon. South Dakota currently ranks 23rd-cheapest of 51 states and D.C. for regular gasoline.