Propane Prices in Delaware (Week of Oct 19, 2026)
Residential propane in Delaware averaged $3.76 a gallon for the week of Oct 19, 2026 (+1.3% in two weeks) – 40% above the US average and the 30th lowest of 38 states EIA surveys.
Source: EIA Heating Oil and Propane Update (weekly, excluding taxes). Updated automatically each week from October to March.
Cost to fill a tank in Delaware
| Delivery | Gallons | Cost at $3.76/gal |
|---|---|---|
| 20 lb grill cylinder (≈4.7 gal) | 4.7 | $17.65 |
| 100 lb cylinder (≈23.6 gal) | 23.6 | $88.62 |
| 500-gallon tank, 20% → 80% | 300 | $1,126.50 |
| 1,000-gallon tank, 20% → 80% | 600 | $2,253.00 |
Before sales tax, delivery minimums or small-delivery fees, which vary by dealer.
Cheapest way to heat in Delaware right now
| Heating system | Cost per million BTU of heat |
|---|---|
| Natural gas furnace (95%) | $16.21 |
| Heat pump (HSPF2 9, COP ≈2.6) | $20.83 |
| Propane furnace (90%) | $45.62 |
| Electric baseboard (COP 1) | $54.16 |
| Heating oil furnace (85%) | $54.63 |
Using Delaware's current averages for propane, heating oil, natural gas and electricity (18.48¢/kWh). Prices for natural gas in Delaware and electricity in Delaware. See also heating oil prices in Delaware.
Nearby states
- Georgia: $3.21/gal
- North Carolina: $3.61/gal
- Virginia: $3.76/gal
- Maryland: $3.80/gal
- Florida: $4.93/gal
Frequently asked questions
What is the price of propane in Delaware this week?
$3.76 per gallon on average for homes in the week of Oct 19, 2026, before taxes (EIA survey). That is 40% above the US average of $2.69, and +1.3% since Oct 5, 2026.
How much does it cost to heat with propane in Delaware?
At $3.76 a gallon, 500 gallons over a winter costs about $1,878 before tax. Actual use depends on the house, insulation and winter – check your past deliveries and enter them in the calculator.
Is propane cheaper than other heat in Delaware?
Per million BTU of heat, propane costs about $45.62 in Delaware this week. The cheapest option at current state averages is natural gas furnace (95%) at $16.21.
Source: EIA weekly residential propane prices. Heat comparison uses typical efficiencies and EIA state averages.