Idaho gas tops $4 a gallon. Where to find cheapest prices in Treasure Valley
The cost of fueling up your car in Idaho keeps going up
Gas prices in Idaho recently topped $4 per gallon, according to AAA.
As Thursday, March 25, a gallon of regular gasoline cost about $4.25 on average, the automobile association said, making the Gem State the eighth most expensive state to fill up in the United States.
Here’s what to know before you hit the pump:
What are gas prices in my Idaho city?
As of Thursday, a gallon of regular gas in Idaho about 27 cents more costly than the national average of $3.98, according to AAA.
Per-gallon gas prices in the Gem State increased by nearly 27 cents compared to a week ago, and $1.27 compared to a month ago, AAA said.
Gas cost 94 cents more per gallon than in March 2025.
According to AAA, this was the average price of a gallon of regular gas in selected Idaho cities as of Thursday:
- Boise: $4.30 per gallon
- Couer D’Alene: $4.09
- Idaho Falls: $4.24
- Lewiston: $4.08
- Pocatello: $4.28
- Twin Falls: $4.31
Where can I find cheaper gas in Boise? Garden City?
One way to save money at the pump is by using GasBuddy or Waze to find the most affordable gas near you.
According to GasBuddy, most gas stations in the Treasure Valley were charging more than $4.10 per gallon as of Thursday.
As of Thursday, these Boise gas stations had the most affordable prices:
- Chevron, 12759 Horseshoe Bend Road: $4.13 a gallon
- Walmart, 8256 West Overland Road: $4.15
- Costco, 2051 South Cole Road: $4.19
- Albertsons, 10565 West Lake Hazel Road: $4.19
- Fred Meyer, 3231 South Federal Way: $4.19
Here’s where to find the cheapest gas in Garden City:
- Fred Meyer, 5425 West Chinden Blvd.: $4.29 a gallon
- Maverick, 8561 West State St.: $4.29
- Shell, 5985 North Glenwood St. and 4400 West Chinden Blvd.: $4.32
- Chevron, 3780 West Chinden Blvd. and 4168 Chinden Blvd.: $4.32
Which gas stations have lowest prices in Meridian?
According to GasBuddy, these were the prices for a gallon of regular gas at Meridian’s most affordable stations as of Thursday:
- Chevron, 770 West Ustick Road: $4.12
- Walmart, 521 West Overland Road: $4.15
- Walmart, 4017 East Fairview Ave.: $4.17
- Chevron, 180 East Central Drive: $4.22
- Sinclair, 1410 West McMillan Road: $4.29
Where to find most affordable fuel in Nampa, Kuna
GasBuddy data showed these stations had the lowest per-gallon prices for regular gas on Thursday:
- Walmart, 2100 12th Avevue Road: $4.07 a gallon
- Sinclair, 2400 12th Avenue Road and 2220 Southside Blvd.: $4.09
- Walmart, 5875 East Franklin Road: $4.11
- Costco, 16700 North Market Place Blvd.: $4.16
- Walmart, 577 South Middleton Road: $4.17
These were the most affordable pumps in Kuna, GasBuddy said:
- Albertsons, 680 East Avalon St.: $4.19 a gallon
- Maverick, 86 North Sailer Ave.: $4.29
- Phillips 66, 1565 East Deer Flat Road: $4.29
- Sinclair, 331 Avenue D: $4.29
- Shell, 330 West Third St.: $4.32
Why are gas prices still rising in Idaho?
Costs at the pump continue to increase as a result of the ongoing U.S. war with Iran.
“Higher crude oil costs, largely the result of conflict in the Middle East, drive up the price of the finished products we get from it — including gasoline, diesel, and jet fuel,” Matthew Conde, AAA Idaho public affairs director, said in a Monday, March 23 news release. “No matter how you or your packages get from Point A to Point B, it carries a higher price tag these days.”
Iran halted all shipments, including crude oil, through the Strait of Hormuz, in response to air strikes from the United States and Israel.
The United States deployed 2,000 troops to the Middle East following the delivery of President Donald Trump’s 15-point plan to end the war to Iran, The New York Times reported.
