Propane Prices in South Dakota
South Dakota average residential propane price
$1.82 per gallon
Week of Oct 12, 2026 · EIA value $1.824
- Change vs last week
- ↑ $0.100 (+5.8%)
- Year ago
- $1.65
- Now up 10.3% from a year ago
Compared with other prices this week
- $0.81 below the U.S. average ($2.64)
- $0.29 below the Midwest average ($2.11)
- South Dakota ranks #35 of 38 states (1 = highest price).
Change vs last week: ↑ $0.100 (+5.8%)
Fill a 500-gallon tank
$729.60
Fuel only at the EIA average
Typical winter propane bill
$1,588
2,000 sq ft, average insulation (our estimate)
Cold-climate heat pump
$993
About $595 less than propane (our estimate)
Cost to fill a propane tank in South Dakota
| Tank | Propane at 80% | Fuel cost |
|---|---|---|
| 100-gallon tank | 80 gal | $145.92 |
| 250-gallon tank | 200 gal | $364.80 |
| 500-gallon tank | 400 gal | $729.60 |
| 1000-gallon tank | 800 gal | $1,459.20 |
Fuel only at the EIA average price. Delivery fees, taxes and minimum deliveries are extra.
South Dakota propane price trend
Weekly EIA averages since October 2025.
Heating cost estimate for a typical South Dakota home
A typical South Dakota home (2,000 sq ft, average insulation) would use about 870 gallons of propane over the winter, roughly $1,588 at this week's price. That is an estimate; change the inputs in the calculator.
Assumes 2,000 sq ft, average insulation, AFUE 0.8, and normal October–March weather (NOAA 1991–2020).
Propane vs other heating fuels in South Dakota
| Fuel | Price used | Fuel needed | Est. winter cost |
|---|---|---|---|
| Heating oil | $5.866/gal (regional average) | 554 gallons | $3,250 |
| Propane | $1.824/gal | 870 gallons | $1,588 |
| Natural gas | $1.22/therm | 796 therms | $973 |
| Electric baseboard | $0.143/kWh | 18,665 kWh | $2,664 |
| Cold-climate heat pump | $0.143/kWh | 6,959 kWh | $993 |
Same home, same weather, each fuel at its own efficiency. Gas and electric use 12-month average prices. Estimates only.
South Dakota propane prices at a glance
South Dakota ranks #35 of 38 states for propane price this week, at $1.82 per gallon.
Prices come from EIA's weekly survey and do not include taxes or delivery fees. For a full explanation, read our methodology.
Nearby states
- Propane prices in Iowa
- Propane prices in Minnesota
- Propane prices in North Dakota
- Propane prices in Nebraska
Propane prices in all states · Heating calculators
Frequently asked questions
What is the average propane price in South Dakota today?
The average residential propane price in South Dakota was $1.82 per gallon for the week of Oct 12, 2026, according to the U.S. Energy Information Administration (excluding taxes).
How much does it cost to fill a 500-gallon propane tank in South Dakota?
A 500-gallon tank holds about 400 gallons at the standard 80% fill, which is about $729.60 at $1.82 per gallon, fuel only.