Propane Prices in Connecticut
Connecticut average residential propane price
$4.23 per gallon
Week of Oct 12, 2026 · EIA value $4.233
- Change vs last week
- ↑ $0.060 (+1.4%)
- Year ago
- $3.69
- Now up 14.7% from a year ago
Compared with other prices this week
- $1.59 above the U.S. average ($2.64)
- $0.46 above the New England average ($3.78)
- Connecticut ranks #2 of 38 states (1 = highest price).
Change vs last week: ↑ $0.060 (+1.4%)
Fill a 500-gallon tank
$1,693.20
Fuel only at the EIA average
Typical winter propane bill
$2,920
2,000 sq ft, average insulation (our estimate)
Cold-climate heat pump
$1,356
About $1,564 less than propane (our estimate)
Cost to fill a propane tank in Connecticut
| Tank | Propane at 80% | Fuel cost |
|---|---|---|
| 100-gallon tank | 80 gal | $338.64 |
| 250-gallon tank | 200 gal | $846.60 |
| 500-gallon tank | 400 gal | $1,693.20 |
| 1000-gallon tank | 800 gal | $3,386.40 |
Fuel only at the EIA average price. Delivery fees, taxes and minimum deliveries are extra.
Connecticut propane price trend
Weekly EIA averages since October 2025.
Heating cost estimate for a typical Connecticut home
A typical Connecticut home (2,000 sq ft, average insulation) would use about 690 gallons of propane over the winter, roughly $2,920 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 Connecticut
| Fuel | Price used | Fuel needed | Est. winter cost |
|---|---|---|---|
| Heating oil | $6.094/gal | 439 gallons | $2,675 |
| Propane | $4.233/gal | 690 gallons | $2,920 |
| Natural gas | $2.25/therm | 631 therms | $1,421 |
| Electric baseboard | $0.282/kWh | 14,791 kWh | $4,171 |
| Cold-climate heat pump | $0.282/kWh | 4,809 kWh | $1,356 |
Same home, same weather, each fuel at its own efficiency. Gas and electric use 12-month average prices. Estimates only.
Connecticut propane prices at a glance
Connecticut ranks #2 of 38 states for propane price this week, at $4.23 per gallon.
See also heating oil prices in Connecticut.
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 all states · Heating calculators
Frequently asked questions
What is the average propane price in Connecticut today?
The average residential propane price in Connecticut was $4.23 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 Connecticut?
A 500-gallon tank holds about 400 gallons at the standard 80% fill, which is about $1,693.20 at $4.23 per gallon, fuel only.
Is propane cheaper than heating oil in Connecticut?
Compare cost per unit of heat, not per gallon: a gallon of heating oil has more energy than a gallon of propane. In our typical-home estimate for Connecticut, propane costs about $2,920 per winter and heating oil about $2,675.