The average home natural gas bill in Montana is $72 per month — that's 19% below the U.S. average of $90, the 38th least expensive of 51 states.
| Montana average | $72 per month |
|---|---|
| U.S. average | $90 per month |
| Difference | −19% (−$17/yr) |
| Rank (most expensive) | 38th of 51 |
Montana ranks 38th of 51 for natural gas bill cost. It stays lower thanks to milder winters and lower regional gas prices. Your own bill still depends on your home size, your usage, and which providers serve your address — so it pays to know where your state stands before you call to negotiate.
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The levers that move your bill the most: a programmable thermostat set a few degrees lower; sealing drafts and adding insulation; an annual furnace tune-up for efficiency; lowering the water-heater temperature. Most cost little or nothing to start, and they stack — knock out two or three and the monthly savings add up fast.
Get the Free Montana Natural Gas Bill Report →The average home natural gas bill in Montana is about $72 per month as of 2026 — 19% below the national average of $90 per month. Your actual bill depends on your home, your usage, and which providers serve your address.
Montana ranks 38th out of 51 for natural gas bill cost. Bills run lower thanks to milder winters and lower regional gas prices.
The fastest levers: a programmable thermostat set a few degrees lower, sealing drafts and adding insulation, an annual furnace tune-up for efficiency. Most of these cost little or nothing to start.