Average gas bill in Idaho
$40a month, on average
$484 over the 12 months September 2025 – August 2026 for a typical residential natural gas customer: total spending divided by 475,518 customers (2024 count).
In context
- Previous 12 months
- $536(−9.7%)
- U.S. average
- $1,023 (−52.7%)
- Gas used per year
- 60.3 Mcf ≈ 625 therms
- Latest price (Aug 2026)
- $14.96/Mcf
- Last winter’s price
- $7.06/Mcf $0.68/therm
3rd lowest yearly gas bill of 51 states and D.C.
Month by month
The winter months (November–March) made up 63% of the year’s gas spending. The highest bill was $80 in January 2026; the lowest $20 in September 2025.
Show the numbers
| Month | Gas per customer | Price | Average bill |
|---|---|---|---|
| September 2025 | 1.57 Mcf | $12.50/Mcf | $19.61 |
| October 2025 | 4.60 Mcf | $8.12/Mcf | $37.33 |
| November 2025 | 7.35 Mcf | $7.24/Mcf | $53.20 |
| December 2025 | 9.49 Mcf | $6.80/Mcf | $64.51 |
| January 2026 | 11.89 Mcf | $6.71/Mcf | $79.81 |
| February 2026 | 8.45 Mcf | $7.18/Mcf | $60.68 |
| March 2026 | 5.79 Mcf | $7.77/Mcf | $44.97 |
| April 2026 | 3.97 Mcf | $8.91/Mcf | $35.36 |
| May 2026 | 2.40 Mcf | $10.82/Mcf | $25.92 |
| June 2026 | 1.89 Mcf | $11.33/Mcf | $21.42 |
| July 2026 | 1.52 Mcf | $13.29/Mcf | $20.23 |
| August 2026 | 1.42 Mcf | $14.96/Mcf | $21.30 |
Estimate your bill
Why the price per Mcf jumps in summer
EIA’s residential price is total revenue divided by gas delivered. Utilities charge a fixed monthly customer fee, so in summer, when households burn little gas, that fee is spread over a small volume and the price per Mcf looks high ($14.96 in August 2026). The winter price, $7.06 per Mcf for Nov 2025 – Mar 2026, is closer to what each extra unit of heat costs.
Gas or a heat pump in Idaho?
At last winter’s gas price and this year’s electricity rate (13.0¢ per kWh), heat from a 90%-efficient gas furnace costs $7.57 per million Btu and from a heat pump with a seasonal COP of 2.5 about $15.26. Gas is the cheaper heat here at current prices. Compare every fuel in Idaho.
Source and method
U.S. Energy Information Administration: residential natural gas price (series N3010ID3), residential consumption (N3010ID2) and number of residential consumers (NA1501_SID_8). Average bill = consumption per customer × average price, month by month. EIA withholds some months for some states; the 12-month window above is the latest with every month reported. Page rebuilt November 4, 2026.