July 2025 average monthly gas cost
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The cost of driving by state varies depending on local gas prices and whether you drive a traditional gas-powered vehicle or an electric vehicle (EV). Gas prices and electricity rates vary by location and fluctuate often, so it’s important to check for the most recent data.
Choose Energy monitors monthly driving costs to show the average cost of gas by state and the cost to operate an EV. This July 2025 report incorporates data from AAA, the Department of Energy (DOE), and other government sources to measure average monthly gas costs by state.
Let’s start with gasoline. As of July 8, drivers in the U.S. paid an average of $3.15 per gallon for regular gasoline, according to AAA. That price is 3 cents lower than on June 2, when we last updated this analysis.
Which states had the most and least expensive gasoline?
Drivers in California paid the most for their gasoline on July 8— $4.55 per gallon. That is 22 cents less than Californians paid on June 2 and 44.5% higher than the national average. Drivers in Mississippi paid the least per gallon on July 8 with an average price of $2.70, which is 14.4% lower than the national average.