How Idaho compares
Average residential propane price this week.
Is your quote a fair price?
Type the price per gallon your dealer quoted to compare it with this week's Idaho average.
The average is before tax. If your quote includes tax or a small-delivery fee, expect it to be a little higher.
What will a delivery cost?
At this week's Idaho average, before tax and delivery fees.
Key numbers
Idaho propane price history
Idaho compared with the U.S. average residential propane price, dollars per gallon, excluding taxes. Hover or tap for any week. Dashed lines span summer months, when prices are surveyed monthly.
Delivery costs now and a year ago
Idaho average price, before tax and delivery charges.
(250-gal tank, 80% fill)
(500-gal tank, 80% fill)
(1,000-gal tank, 80% fill)
Nearby states
Propane prices in the Rocky Mountain region this week.
Common questions
What is the price of propane in Idaho today?
The latest official average is $2.686 per gallon for the week of October 26, 2026, excluding taxes. Prices are surveyed weekly from October to March and monthly from April to September.
Are propane prices going up or down in Idaho?
Up 10.0¢ on the week. Up 37.4¢ (16%) on the same week last year. Over the past 12 months the price ranged from $2.30 to $2.69.
Why is my supplier's price different?
This is an average across dealers surveyed in Idaho. Individual prices depend on the dealer, delivery size, payment terms and any pre-buy or capped-price plan, and taxes are added on top.
When does this page update?
New prices are published every Wednesday during the heating season. The next update is due November 4, 2026.