Gas prices in Idaho today
The latest reported regular gas average in Idaho is $4.70 per gallon, with diesel at $6.52/gal. Prices include taxes. Compare fuel grades, recent changes and local metro averages below; individual pump prices vary.
Idaho gas price trends
Regular, AAA daily state averages, as of 2026-10-24
A 15-US-gallon fill of regular gasoline in Idaho costs about $70.50 at the state average reported on 2026-10-24, $1.74 less than on 2026-10-17.
The comparison holds the amount of fuel constant, so it shows what the price change means for your bill. For a road trip, use the averages to set a budget and check actual pump prices before choosing a stop.
- vs yesterday
- down Idaho regular 0.4%
- $4.72 on 2026-10-23 → $4.70
- $0.30 less per 15-gallon fill
- vs a week ago
- down Idaho regular 2.4%
- $4.82 on 2026-10-17 → $4.70
- $1.74 less per 15-gallon fill
- vs a month ago
- down Idaho regular 6.1%
- $5.00 → $4.70
- $4.55 less per 15-gallon fill
- vs a year ago
- up Idaho regular 37.7%
- $3.41 → $4.70
- $19.30 more per 15-gallon fill
Cost for 15 US gallons of regular gasoline · USD
- Reported 2026-10-24
- USD 70.50
- Week ago (2026-10-17)
- USD 72.24
- Month ago
- USD 75.05
- Year ago
- USD 51.20
FuelWide calculation: each AAA regular state average × the selected US gallons, rounded to cents. Observations as of 2026-10-24; month-ago and year-ago are AAA's comparison labels. Station prices vary.
Check the AAA source for Idaho
| Period | regular | midgrade | premium | diesel |
|---|---|---|---|---|
| Reported 2026-10-24 | $4.70 | $5.01 | $5.28 | $6.52 |
| Yesterday (2026-10-23) | $4.72 | $5.05 | $5.31 | $6.52 |
| Week ago (2026-10-17) | $4.82 | $5.14 | $5.41 | $6.39 |
| Month ago | $5.00 | $5.32 | $5.58 | $6.65 |
| Year ago | $3.41 | $3.71 | $3.98 | $3.75 |
The EIA doesn’t survey Idaho weekly, so there is no long Idaho series. For the trend it follows, see US gas price history since 1990 →
Idaho diesel prices
Diesel averages $6.52 per gallon in Idaho, according to AAA on 2026-10-24. That is $0.18/gal above the unweighted mean of AAA’s 51 diesel averages for states and DC. A 30-gallon fill costs about $195.54.
Idaho diesel prices by city, with the weekly and yearly change and the diesel tax →
Lowest reported metro diesel averages in Idaho
AAA metro averages as of 2026-10-24. Area averages, not individual station prices. Compare all local areas →
Gas stations in Idaho
Stations color-coded by brand — the panel ranks the providers and you can filter to one brand. Move the map anywhere in Idaho and press “Search this area”.
Locations onlyNo public station-price feed exists here, so pins show locations, brands and directions only. Prices on this page are area averages. Locations come from OpenStreetMap, a volunteer-edited map, so a new or rebranded station can be missing until someone updates it.
Explore stations, fuel options and directions.
a gallon more for premium than regular in Idaho. How that compares with every other state, and whether your car needs it.
Where gas is cheapest in Idaho: prices by metro area
AAA reports separate daily averages for 7 Idaho metros — $0.35 a gallon between the cheapest and the dearest.
- 1Coeur D'Alene$4.40
- 2Lewiston$4.42
- 3Pocatello$4.64
- 4Franklin$4.67
- 5Idaho Falls$4.69
- 6Twin Falls$4.73
- 7Boise City$4.75
AAA metro averages · 2026-10-24
What a tank costs in Idaho, and how much of it is tax
- Compact — 12 gal$56.40
- Sedan / crossover — 15 gal$70.50
- SUV — 20 gal$94.00
- Full-size pickup — 26 gal$122.20
Tax is 11% of the pump price in Idaho. Pre-tax figure is an estimate — state rates as of 2026-01-01.
Idaho compared with neighbouring states
Where the line is worth crossing, and where it is not — each comparison shows how much of the gap is tax rather than the fuel itself.
- North Carolina$3.51
- Georgia$3.67
- Texas$3.73
- Louisiana$3.80
- South Carolina$3.80
- Alabama$3.83
- Tennessee$3.83
- Mississippi$3.85
- Arkansas$3.85
- Delaware$3.92
- Missouri$3.94
- Oklahoma$3.94
- Kansas$3.95
- Maryland$3.99
- Indiana$4.02
- Kentucky$4.05
- Virginia$4.06
- North Dakota$4.12
- Florida$4.13
- Rhode Island$4.15
- New Jersey$4.18
- Iowa$4.20
- Minnesota$4.21
- West Virginia$4.21
- New Hampshire$4.22
- Massachusetts$4.23
- South Dakota$4.23
- New Mexico$4.24
- Connecticut$4.31
- Maine$4.31
- Nebraska$4.33
- Vermont$4.36
- District of Columbia$4.36
- New York$4.39
- Colorado$4.41
- Montana$4.41
- Wyoming$4.42
- Ohio$4.42
- Pennsylvania$4.45
- Arizona$4.52
- Wisconsin$4.52
- Utah$4.68
- Idaho$4.70
- Michigan$4.84
- Alaska$4.87
- Oregon$4.88
- Illinois$4.90
- Nevada$5.30
- Washington$5.31
- Hawaii$5.66
- California$6.03
The answer, in full — and where it comes from
As of 24 October 2026, regular gasoline in Idaho averages $4.70/gal, the state average. Source: Daily fuel gauge report, AAA (a third-party aggregator, published daily). Retrieved by FuelWide on 24 October 2026.
Midgrade gasoline in Idaho averages $5.01/gal. Premium gasoline in Idaho averages $5.28/gal. Diesel in Idaho averages $6.52/gal.
- Price:
- $4.70/gal
- Fuel:
- Regular gasoline
- Price basis:
- State average
- Applies to:
- Idaho (state level)
- Measured:
- 2026-10-24
- Retrieved:
- 2026-10-24
- Source:
- AAA — a third-party aggregator
Daily fuel gauge report · State and metro averages: AAA · How we measure this
Tools for drivers in Idaho
Frequently asked questions
How much is gas in Idaho right now?
Regular gasoline in Idaho averages $4.70 per gallon today (AAA daily state average). Midgrade is $5.01, premium $5.28 and diesel $6.52.
Is gas in Idaho expensive compared to other states?
Idaho ranks 43 of 51 states from cheapest to most expensive for regular gas this week.
Is gas in Idaho above or below the US average?
Regular in Idaho is 8.8% above the unweighted mean of AAA's 51 state averages ($4.32/gal), measured on 2026-10-24. The EIA publishes a separate, volume-weighted national average weekly; the two are different measurements and will not match.
How much is diesel in Idaho today?
Diesel averages $6.52 a gallon in Idaho today (AAA daily state average), up 2.0% on a week earlier. A 30-gallon pickup fill costs about $195.54.
How have gas prices in Idaho changed recently?
Regular gas in Idaho is down 2.4% on a week ago, down 6.1% on a month ago, up 37.7% on a year ago, according to AAA's daily state averages.
Where is gas cheapest in Idaho?
Among the 7 Idaho metro areas AAA reports, Coeur D'Alene is cheapest at $4.40 a gallon for regular and Boise City dearest at $4.75. These are area averages; individual stations vary.
How much tax is on a gallon of diesel in Idaho?
$0.57 a gallon — $0.24 federal plus $0.33 in Idaho state taxes and fees, the 21 highest of 51 states. That is about 9% of today's pump price of $6.52. Rates as of 2026-01-01.
How much tax is on a gallon of gas in Idaho?
$0.51 a gallon — $0.18 federal plus $0.33 in Idaho state taxes and fees, the 21 highest of 51 states. That is about 11% of the pump price. Rates as of 2026-01-01.
How much does it cost to fill up in Idaho?
At today's average of $4.70 a gallon, a 15-gallon sedan tank costs $70.50 to fill from empty, and a 26-gallon full-size pickup $122.20.
Why this price is what it is
- Premium vs. Regular Gas: Is Premium Actually Worth It?Premium costs more per gallon — but does it help your car? Here's when premium is worth it, when it's wasted money, and what octane really does.
- Fuel Taxes Explained: What You Really Pay Per GallonA big slice of every gallon is tax — but how much, and where does it go? A clear guide to federal, state and European fuel taxes.
- The Best Day and Time to Buy Gas (Backed by Price Data)Studies of billions of transactions point to early in the week as the cheapest time to fill up. Here's the best day, the best time of day, and why it works.