Idaho propane prices
What Idaho (ID) homes pay per gallon for propane: the average residential price from EIA's weekly survey of propane dealers, updated every Wednesday from October to March.
Updated · EIA data
- vs. Rocky Mountain
- 25¢ higher
- Past 4 weeks
- not published
Source: U.S. Energy Information Administration, State Heating Oil and Propane Program, published Wednesdays, October to March. About the survey
Idaho propane price chart
EIA weekly averages, residential propane, dollars per gallon.
Idaho propane prices by week, 2026–27 season
This week's $2.59 a gallon in Idaho is 13% above the $2.29 of the week of October 20, 2025, a year earlier.
| Week of | Idaho | Rocky Mountain |
|---|---|---|
| Oct 19, 2026 | $2.59 | $2.34 |
| Oct 12, 2026 | $2.63 | $2.28 |
| Oct 5, 2026 | $2.51 | $2.19 |
EIA weekly averages for Idaho and the Rocky Mountain region, residential propane, dollars per gallon.
Idaho propane prices by season
The lowest and highest weekly price in each heating season (October to March), and the season's last week.
| Season | Low | High | Last week |
|---|---|---|---|
| 2026–27 (so far) | $2.51 | $2.63 | $2.59 |
| 2025–26 | $2.29 | $2.43 | $2.40 |
| 2024–25 | $2.32 | $2.63 | $2.60 |
| 2023–24 | $2.27 | $2.67 | $2.67 |
| 2022–23 | $2.51 | $2.77 | $2.71 |
| 2021–22 | $2.43 | $2.87 | $2.85 |
| 2020–21 | $1.62 | $2.24 | $2.21 |
EIA weekly averages for Idaho, residential propane, dollars per gallon, October to March surveys.
What a delivery costs
- 100 gallons$259
- 250 gallons$647
- 500 gallons$1,293
BillAverage estimate based on EIA data, at the latest EIA weekly average for Idaho. Dealers' prices vary.
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Questions
- What is the price of propane in Idaho?
- $2.59 a gallon, EIA's weekly average residential price for Idaho in the week of October 19, 2026.
- Is propane cheaper in Idaho than the Rocky Mountain average?
- No. Idaho's $2.59 a gallon was 25¢ above EIA's Rocky Mountain average of $2.34 that week.
- How have ID propane prices changed this season?
- So far in the 2026–27 season, ID propane prices have ranged from a low of $2.51 a gallon (week of October 5, 2026) to a high of $2.63 (week of October 12, 2026), per EIA's weekly survey, and stand at $2.59 this week. That's 13% above the $2.29 of a year earlier (week of October 20, 2025).
- How much does a propane delivery cost in Idaho?
- At $2.59 a gallon, 100 gallons cost about $259, 250 gallons about $647 and 500 gallons about $1,293. That's our estimate at EIA's weekly average; dealers' prices vary.
- How often are propane prices updated?
- EIA surveys propane dealers every Monday from October through March and publishes the averages on Wednesday. We update this page when EIA publishes.