# South Dakota propane prices Latest surveyed price (Mar 30, 2026): $1.840/gal, wholesale $0.952/gal. EIA weekly survey (October-March). _Data through Mar 30, 2026 · source last checked Sep 2, 2026 · page revised Aug 26, 2026_ > Out of season — last quoted Mar 30, 2026. > Now $1.840/gal, 11.2% below the 4-yr median. The EIA weekly price survey runs October through March; the latest reading is $1.840/gal from Mar 30, 2026. The survey resumes in October. South Dakota residential propane ended the 2025-26 heating season at $1.840/gal on March 30, 11.2% below the 4-year median and down 7.9% year over year. The EIA weekly survey pauses during the off-season and resumes in October. ## Final weeks of the 2025-26 heating season | Period | Current | Prior | Change | | --- | --- | --- | --- | | vs 4-yr median | $1.840/gal | $2.072/gal | -11.2% | | Year over year | $1.840/gal | $1.997/gal | -7.9% | | vs 4 weeks ago | $1.840/gal | $1.828/gal | +0.7% | | Week over week | $1.840/gal | $1.840/gal | 0.0% | ### Propane-heated households — US Census ACS 5-year estimate (2020-2024), table B25040 | Measure | Value | | --- | --- | | Homes heating with propane | 56,552 | | Share of occupied homes | 15.5% | | Occupied homes (all fuels) | 365,544 | | National rank by propane share | #3 of 51 | ## About South Dakota propane prices South Dakota heats a larger share of its homes with propane than nearly any other state, and its dealers cover long distances to do it. Grain drying pulls hard through the fall across the eastern counties, and the winter that follows is severe. Supply comes by pipeline into eastern terminals and by rail and truck from the Rockies and the Gulf Coast, which makes a January rail bottleneck a real risk here. This is a surveyed average rather than a quote. EIA polls a sample of South Dakota propane dealers weekly through the October to March heating season and publishes the state figure Wednesday afternoon; the series then goes quiet until October. EIA also surveys a wholesale price for South Dakota, plotted as the lower line. The distance between the two is the delivered-service stack, and it widens when the rack falls faster than dealers reprice. The Census Bureau's American Community Survey, on five-year estimates, puts propane as the main heating fuel in 15.5% of occupied South Dakota homes, the 3rd highest share in the country. A hard winter is a bigger household event here than the national average suggests. The regional numbers around this price are [Midwest propane prices](/region/padd2) and [Midwest propane stocks](/stocks/padd2), the inventory that has to cover the winter. A price per gallon is not a delivery ticket. The [propane usage calculator](/tools/propane-usage-calculator) estimates gallons burned and what a fill costs at the current South Dakota survey price. ## Common questions ### What is the current propane price in South Dakota? EIA surveys residential propane prices only from October through March, so there is no current residential figure for South Dakota right now. The wholesale (rack) price dealers pay in South Dakota is $0.952/gal a gallon as of Mar 30, 2026, and the last surveyed residential price was $1.840/gal on Mar 30, 2026. The weekly survey restarts in October. ### When is propane most expensive in South Dakota? Residential propane runs highest in the middle of the heating season, ordinarily January and February, and cheapest through the summer while [Midwest stocks](/stocks/padd2) are building and nothing is drawing on them. The regional wrinkle is that the Midwest season starts before the thermostat does: propane fires grain dryers across the Corn Belt in October and November, and a wet harvest can pull volume hard weeks ahead of heating demand. [Why propane prices rise in winter](/guides/why-propane-prices-rise-in-winter) has the mechanics. ### What is the difference between the residential and wholesale price on this page? The residential price is what a South Dakota household pays for a delivered gallon: the dealer's own cost plus trucking, tank service and margin. The wholesale price is that dealer cost at the rack, before any of it. The gap between the two is the delivered-service stack, and [how propane is priced](/guides/how-propane-is-priced) walks through each layer of it. ## About this data - Source: EIA State Heating Oil and Propane Program survey - Series: Residential retail propane price - Basis: Residential, retail - Geography: South Dakota propane prices - Unit: $/gal - Calculation period: Weekly survey, Oct-Mar heating season - Last observation: Mar 30, 2026 - Update frequency: Weekly, Oct-Mar --- Cite: Residential propane in South Dakota propane prices averaged $1.840/gal as of Mar 30, 2026 (EIA). The Fill Line. https://fill-line.com/state/south-dakota Canonical URL: https://fill-line.com/state/south-dakota