Natural Gas Price in Indiana (2025)
Natural gas in Indiana costs $1.11 per therm on average for homes ($11.49 per Mcf, 2025) – 25% below the US average and the 14th cheapest of 51 states and DC. The average customer's bill works out to about $68 a month over the year.
Source: EIA annual residential price (2025) and residential use per customer (2024). Latest monthly figure: $2.33/therm in July 2026 (monthly prices swing with the season).
Gas bill in Indiana by usage
| Monthly use | Indiana | At US average |
|---|---|---|
| 30 therms (29 ccf) | $33.24 | $44.38 |
| 60 therms (58 ccf) | $66.48 | $88.76 |
| 100 therms (96 ccf) | $110.80 | $147.93 |
| 150 therms (145 ccf) | $166.20 | $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
Indiana's average residential price rose from $9.50 per Mcf in 2024 to $11.49 in 2025 (+20.9%). Nationally it went from $14.50 to $15.34.
Gas vs electricity in Indiana
One therm of gas holds the same energy as 29.3 kWh of electricity. At Indiana's 16.73¢/kWh, that much electricity costs $4.90 versus $1.11 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 Indiana.
How Indiana compares
- Illinois: $1.08/therm, about $81/month
- Nebraska: $1.10/therm, about $57/month
- Wyoming: $1.13/therm, about $68/month
- Tennessee: $1.14/therm, about $52/month
- US average: $1.48/therm, about $76/month.
Other East North Central states: Wisconsin ($1.04), Michigan ($1.05), Illinois ($1.08), Ohio ($1.34).
Frequently asked questions
How much is natural gas per therm in Indiana?
Indiana residential customers paid an average of $1.11 per therm in 2025 ($11.49 per thousand cubic feet), including delivery charges. That is 25% below the US average of $1.48 and ranks 14th cheapest of 51.
What is the average gas bill in Indiana?
The average Indiana gas customer used about 71.4 Mcf (740 therms) a year in 2024, which works out to about $68 a month at 2025 prices, averaged over the year. Winter bills are much higher than summer bills.
Has natural gas gone up in Indiana?
The average price rose from $9.50 per Mcf in 2024 to $11.49 in 2025 (+20.9%).
Is gas or electric heat cheaper in Indiana?
Per unit of energy, gas at $1.11/therm compares with $4.90 for the same energy from electricity at 16.73¢/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.