Natural Gas Price in Connecticut (2024)
Natural gas in Connecticut costs $1.62 per therm on average for homes ($16.83 per Mcf, 2024) – 10% above the US average and the 34th cheapest of 51 states and DC. The average customer's bill works out to about $112 a month over the year.
Source: EIA annual residential price (2024) and residential use per customer (2024). Latest monthly figure: $2.25/therm in May 2026 (monthly prices swing with the season).
Gas bill in Connecticut by usage
| Monthly use | Connecticut | At US average |
|---|---|---|
| 30 therms (29 ccf) | $48.69 | $44.38 |
| 60 therms (58 ccf) | $97.38 | $88.76 |
| 100 therms (96 ccf) | $162.30 | $147.93 |
| 150 therms (145 ccf) | $243.44 | $221.89 |
Average price includes delivery and fixed charges spread over all gas sold. Roughly: 30 therms is a summer month with a gas water heater and stove; 100–150 therms is a cold-climate winter month with gas heat.
Price trend
Connecticut's average residential price fell from $18.88 per Mcf in 2023 to $16.83 in 2024 (−10.9%). Nationally it went from $14.50 to $15.34.
Gas vs electricity in Connecticut
One therm of gas holds the same energy as 29.3 kWh of electricity. At Connecticut's 24.16¢/kWh, that much electricity costs $7.08 versus $1.62 for the gas. Gas furnaces turn 80–97% of that into heat, while a heat pump delivers 2–3 times the electricity it uses. Run your own numbers with the heat pump vs furnace calculator, and see electricity cost in Connecticut.
How Connecticut compares
- Oregon: $1.61/therm, about $77/month
- Virginia: $1.62/therm, about $81/month
- South Carolina: $1.63/therm, about $56/month
- Louisiana: $1.68/therm, about $50/month
- US average: $1.48/therm, about $76/month.
Other New England states: Vermont ($1.74), New Hampshire ($1.79), Maine ($1.83), Rhode Island ($2.09), Massachusetts ($2.42).
Frequently asked questions
How much is natural gas per therm in Connecticut?
Connecticut residential customers paid an average of $1.62 per therm in 2024 ($16.83 per thousand cubic feet), including delivery charges. That is 10% above the US average of $1.48 and ranks 34th cheapest of 51.
What is the average gas bill in Connecticut?
The average Connecticut gas customer used about 79.7 Mcf (826 therms) a year in 2024, which works out to about $112 a month at 2024 prices, averaged over the year. Winter bills are much higher than summer bills.
Has natural gas gone up in Connecticut?
The average price fell from $18.88 per Mcf in 2023 to $16.83 in 2024 (−10.9%).
Is gas or electric heat cheaper in Connecticut?
Per unit of energy, gas at $1.62/therm compares with $7.08 for the same energy from electricity at 24.16¢/kWh. A heat pump delivers 2–3 units of heat per unit of electricity, so it can still beat gas – compare with your numbers in the heat pump vs furnace calculator.
Sources: EIA natural gas prices; EIA residential deliveries; EIA number of consumers.