September 2026 average gas prices by state

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September 2026 average gas prices by state
Gas prices vary widely by state and can change quickly from month to month. Choose Energy tracks average gasoline prices and electric vehicle (EV) charging access across the U.S. to show how driving conditions compare by state.
This September 2026 report uses data from AAA, the U.S. Department of Energy (DOE), and other government sources. As of September 4, drivers in the U.S. paid an average of $4.15 per gallon for regular gasoline. That was about 7 cents higher than the $4.08 national average recorded on August 5, representing a monthly increase of 1.6%.
California had the highest average gasoline price on September 4 at $5.81 per gallon, or 40.0% above the national average. Indiana had the lowest average at $3.45 per gallon, which was 16.9% below the national average.