Idaho Gas Prices Rose Significantly This Month

The state average for regular gasoline climbed to $4.83 per gallon as regional fuel costs outpaced national trends.

Updated on Sept. 21, 2026 in Inflation

Bold vector editorial illustration of an industrial valve assembly set against a stark mountainous landscape, illustrating regional fuel supply dynamics. — Idaho gasoline prices rose to an average of $4.83 per gallon this month, driven by regional refinery disruptions and tight global fuel supplies. AI Illustration. Upload story photo >

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Is the recent increase in gas prices making it harder to manage your monthly budget?

Idaho gas prices surged by 35.6 cents per gallon over the past month, reaching an average of $4.83 per gallon. This state average currently sits 39 cents higher than the U.S. national average of $4.44 per gallon.

Why it matters

The recent price jump is driven by refinery disruptions and tighter global fuel supplies. Geopolitical developments and issues at oil refineries continue to impact the availability and cost of fuel for consumers across the state.

Idaho drivers are currently paying an average of $4.83 per gallon for regular gas, with local prices ranging from a low of $4.38 to a high of $6.51. This represents a 6.7-cent increase over the previous week alone.

The details

Refinery disruptions combined with broader global supply constraints have pressured fuel markets. These conditions are pushing prices in Idaho well above national benchmarks, with the state average now $1.31 higher than levels recorded one year ago.

Idaho gas prices reached an average of $4.83 per gallon on September 21, 2026.

Macro View

Current Idaho fuel costs mark a significant departure from the lower price environment established by the 2024 annual average of $3.52 per gallon. This rapid escalation reflects broader volatility in global supply chains that frequently causes regional spikes in energy costs.

The recent price increase directly elevates the cost of daily commuting and household transport budgets for Idaho residents. Drivers may notice a widening gap between local prices and the national average, necessitating adjustments to monthly fuel spending.

The takeaway

Drivers should monitor refinery updates as future price directions remain tied to global supply developments. Budgeting for higher transportation costs may be necessary until regional supply chain conditions stabilize.