Idaho Propane Price Per Gallon (Latest EIA: 19 October 2026)
The survey figure above is what dealers post for a household using about 900 gallons a year. Enter what your last bill came to per gallon and this page tells you where it sits.
Used only for the comparison and the anonymous state figure. Never sent to a propane company.
As of the week ending 19 October 2026, the average residential propane price in Idaho was $2.586 per gallon (EIA series W_EPLLPA_PRS_SID_DPG). The Idaho price is below the US national average of $2.689 by $0.10 per gallon. That is 12.8% above the same week of 2025 ($2.293). Across the 2025-2026 heating season, the Idaho residential figure moved from $2.362 to $2.397.
How Idaho compares
| Comparison | Reference price | Difference |
|---|---|---|
| Idaho vs US national average | $2.689 | $-0.10 (-3.8%) |
| Idaho vs 5-year US average | $2.580 | +$0.01 |
| Idaho season start (Oct 2025) | $2.362 | +$0.22 |
Where Idaho ranks
Among the 38 states the EIA Weekly Heating Oil and Propane Survey publishes residential prices for, Idaho is the 16th-cheapest at $2.586 per gallon for the week ending 19 October 2026. The cheapest state in the survey is North Dakota ($1.651); the most expensive is Florida ($4.928). See the full state ranking table for every state and how it compares with the national average.
What drives the Idaho price
Idaho sits in PADD 4 (Rocky Mountain). As of the week ending 19 October 2026 its residential propane price was $2.586 per gallon, below the US national average of $2.689. Idaho is part of the Rocky Mountain region, a smaller and more isolated market served mainly by regional refineries and truck distribution, where prices tend to track below the national average.
Idaho propane price FAQ
What is the average cost of propane in Idaho?
The average residential propane price in Idaho is $2.586 per gallon, from the most recent EIA Weekly Heating Oil and Propane Survey (week ending 19 October 2026, series W_EPLLPA_PRS_SID_DPG). That is $0.10 below the US national average of $2.689 per gallon. EIA collects this price weekly from October through March and publishes each week's reading the following Wednesday, so this is the latest published average; the next weekly update is expected 28 October 2026.
What is the current propane price per gallon in Idaho?
As of the latest EIA Weekly Heating Oil and Propane Survey (week ending 19 October 2026), residential propane in Idaho averaged $2.586 per gallon (EIA series W_EPLLPA_PRS_SID_DPG). EIA collects this price weekly from October through March and publishes each week's reading the following Wednesday, so this is the most recently published reading; the next weekly update is expected 28 October 2026.
Is propane cheaper in Idaho than the US average?
Idaho residential propane is below the US national average of $2.689 per gallon by $0.10 (-3.8%), based on the same EIA weekly survey for the week ending 19 October 2026.
Is propane cheaper in Idaho than a year ago?
For the week ending 19 October 2026, Idaho residential propane averaged $2.586 per gallon, up 12.8% on $2.293 for the same week of 2025 (EIA series W_EPLLPA_PRS_SID_DPG).
How much did the Idaho propane price change over the 2025-2026 heating season?
Across the 2025-2026 heating season, the Idaho residential price moved from $2.362 per gallon at the start of October 2025 to $2.397 at the end of March 2026, a change of +$0.03 per gallon.
Where does Idaho rank for propane prices among states?
Among the 38 states the EIA Weekly Heating Oil and Propane Survey publishes residential prices for, Idaho is the 16th-cheapest at $2.586 per gallon for the week ending 19 October 2026. The cheapest is North Dakota at $1.651; the most expensive is Florida at $4.928.