Gas prices could shape the midterms. See the US states where prices have risen the most.

In 42 states, gas prices are more than $1 higher today than they were a year ago. Rising gas prices since the beginning of the Iran War are a key issue during the 2026 midterms. Since last year, regular gas prices have increased by 40%, and diesel prices by 71% across states. Michigan, a key battleground state, saw the second-sharpest rise in gas prices after Wisconsin. For many voters, their choice in the midterm elections could come down to one thing: the pain at the pump. Since the Iran War began in February, higher fuel costs have become a growing pressure point for Americans. Disruptions in the Strait of Hormuz, a critical global shipping chokepoint, have tightened global fuel supplies and pushed energy prices worldwide. On average, regular gas prices in the US today are nearly 40% higher than a year ago, according to AAA's Fuel Price Tracker as of November 2. In 42 states, regular gas prices per gallon today are at least $1 higher than they were a year ago. For diesel fuel, which is used in industries like agriculture and manufacturing, as well as for transporting goods, the rise has been even sharper. Across all US states, diesel prices have risen by 71% on average. Almost every US state recorded its highest-ever diesel prices this fall, with the exception of Rhode Island, Massachusetts, and New York, which saw higher prices in 2022, when Russia's invasion of Ukraine sent global fuel prices soaring. A White House spokesperson told Business Insider that once the conflict in the Middle East ends, gas prices will "drop drastically," adding Iran also "will not have a nuclear weapon." "Thanks to the exceptional work of the US military, more oil is now flowing out of the Persian Gulf than before the Iran conflict began," the spokesperson said. To see how fuel prices have risen across the US, Business Insider used AAA data to compare today's gas prices with those a year ago. We ranked all US states by the percentage increase in regular prices, which most people see at the pump. We also listed the rise in diesel prices in each state to provide a fuller picture. See how prices have risen in every US state in the past year, ranked from lowest to sharpest rise. 50. Washington M. Regular gas price today: $5.19 a gallon Regular gas price increase: 21.2% ($0.91) from a year ago Diesel gas price today: $7.25 a gallon Diesel gas price increase: 45.6% ($2.27) from a year ago 49. Regular gas price today: $3.38 a gallon Regular gas price increase: 22.7% ($0.63) from a year ago Diesel gas price today: $5.49 a gallon Diesel gas price increase: 58.2% ($2.02) from a year ago 48. Oregon A price board is seen at a gas station in Oregon, the United States, July 13, 2022. U.S. consumer price index CPI, a broad measure of everyday goods and services, soared 9.1 percent in June from a year ago, marking the largest 12-month increase since the period ending November 1981, the Labor Department reported Wednesday. (Photo by Wang Ying/Xinhua via Getty Images Regular gas price today: $4.79 a gallon Regular gas price increase: 23.2% ($0.90) from a year ago Diesel gas price today: $6.71 a gallon Diesel gas price increase: 53.7% ($2.34) from a year ago 47. Alaska A Chevron gas station in Anchorage, Alaska, US, on Thursday, Aug. 14, 2025. The Friday summit between US President Donald Trump and Russian President Vladimir Putin will take place at Joint Base Elmendorf-Richardson, Alaska's largest military installation less than a thousand miles from Russia. Photographer: Regular gas price today: $4.76 a gallon Regular gas price increase: 24.4% ($0.93) from a year ago Diesel gas price today: $6.44 a gallon Diesel gas price increase: 57.9% ($2.36) from a year ago 46. Hawaii Jill K. Briggs / AFP via Getty Images Regular gas price today: $5.66 a gallon Regular gas price increase: 26.3% ($1.18) from a year ago Diesel gas price today: $7.22 a gallon Diesel gas price increase: 38.3% ($2.00) from a year ago 45. California David Swanson / AFP via Getty Images Regular gas price today: $5.91 a gallon Regular gas price increase: 27.0% ($1.26) from a year ago Diesel gas price today: $8.34 a gallon Diesel gas price increase: 62.5% ($3.21) from a year ago 44. Regular gas price today: $3.58 a gallon Regular gas price increase: 28.4% ($0.79) from a year ago Diesel gas price today: $5.66 a gallon Diesel gas price increase: 62.3% ($2.17) from a year ago 43. Regular gas price today: $3.86 a gallon Regular gas price increase: 30.0% ($0.89) from a year ago Diesel gas price today: $5.98 a gallon Diesel gas price increase: 63.8% ($2.33) from a year ago 42. Regular gas price today: $3.81 a gallon Regular gas price increase: 31.0% ($0.90) from a year ago Diesel gas price today: $6.76 a gallon Diesel gas price increase: 76.9% ($2.94) from a year ago 41. Regular gas price today: $4.42 a gallon Regular gas price increase: 31.4% ($1.06) from a year ago Diesel gas price today: $6.29 a gallon Diesel gas price increase: 74.7% ($2.69) from a year ago 40. Regular gas price today: $5.24 a gallon Regular gas price increase: 34.2% ($1.33) from a year ago Diesel gas price today: $6.82 a gallon Diesel gas price increase: 72.9% ($2.88) from a year ago 39. Idaho Union 76 gas station along city street, northern Idaho. (Photo by: Don & Melinda Crawford/Education Images/Universal Images Group via Getty Images) : Don & Melinda Crawford/Education Images/Universal Images Group via Getty Images Regular gas price today: $4.53 a gallon Regular gas price increase: 34.8% ($1.17) from a year ago Diesel gas price today: $6.53 a gallon Diesel gas price increase: 75.1% ($2.80) from a year ago 38. Regular gas price today: $3.99 a gallon Regular gas price increase: 35.1% ($1.04) from a year ago Diesel gas price today: $6.32 a gallon Diesel gas price increase: 72.9% ($2.67) from a year ago 37. Regular gas price today: $3.95 a gallon Regular gas price increase: 35.4% ($1.03) from a year ago Diesel gas price today: $6.31 a gallon Diesel gas price increase: 75.2% ($2.71) from a year ago 36. South Regular gas price today: $3.65 a gallon Regular gas price increase: 36.2% ($0.97) from a year ago Diesel gas price today: $5.73 a gallon Diesel gas price increase: 67.7% ($2.31) from a year ago 35. Regular gas price today: $3.96 a gallon Regular gas price increase: 36.2% ($1.05) from a year ago Diesel gas price today: $6.22 a gallon Diesel gas price increase: 73.7% ($2.64) from a year ago 34. Regular gas price today: $4.43 a gallon Regular gas price increase: 37.9% ($1.22) from a year ago Diesel gas price today: $6.59 a gallon Diesel gas price increase: 64.0% ($2.57) from a year ago 33. Regular gas price today: $4.13 a gallon Regular gas price increase: 39.1% ($1.16) from a year ago Diesel gas price today: $6.37 a gallon Diesel gas price increase: 74.7% ($2.72) from a year ago 32. Connecticut Paul Hughes/Connecticut Post via Getty Images Regular gas price today: $4.25 a gallon Regular gas price increase: 39.6% ($1.20) from a year ago Diesel gas price today: $6.41 a gallon Diesel gas price increase: 70.6% ($2.65) from a year ago 31. Regular gas price today: $4.32 a gallon Regular gas price increase: 39.7% ($1.23) from a year ago Diesel gas price today: $6.36 a gallon Diesel gas price increase: 66.8% ($2.55) from a year ago 30. Massachusetts Matt Stone/MediaNews Group/Boston Herald via Getty Images Regular gas price today: $4.18 a gallon Regular gas price increase: 39.8% ($1.19) from a year ago Diesel gas price today: $6.31 a gallon Diesel gas price increase: 65.8% ($2.51) from a year ago 29. New York Lori Van Buren/Times Union via Getty Images Regular gas price today: $4.34 a gallon Regular gas price increase: 39.8% ($1.24) from a year ago Diesel gas price today: $6.49 a gallon Diesel gas price increase: 67.4% ($2.61) from a year ago 28. Regular gas price today: $4.16 a gallon Regular gas price increase: 39.9% ($1.19) from a year ago Diesel gas price today: $6.37 a gallon Diesel gas price increase: 75.6% ($2.74) from a year ago 27. Regular gas price today: $3.73 a gallon Regular gas price increase: 40.5% ($1.07) from a year ago Diesel gas price today: $5.85 a gallon Diesel gas price increase: 71.5% ($2.44) from a year ago 26. Regular gas price today: $4.25 a gallon Regular gas price increase: 40.6% ($1.23) from a year ago Diesel gas price today: $6.40 a gallon Diesel gas price increase: 65.0% ($2.52) from a year ago 25. Regular gas price today: $3.71 a gallon Regular gas price increase: 40.9% ($1.08) from a year ago Diesel gas price today: $5.92 a gallon Diesel gas price increase: 74.8% ($2.53) from a year ago 24. Regular gas price today: $4.12 a gallon Regular gas price increase: 41.0% ($1.20) from a year ago Diesel gas price today: $6.30 a gallon Diesel gas price increase: 67.0% ($2.53) from a year ago 23. Regular gas price today: $4.13 a gallon Regular gas price increase: 41.2% ($1.21) from a year ago Diesel gas price today: $6.44 a gallon Diesel gas price increase: 73.5% ($2.73) from a year ago 22. North Dakota : Jim West/UCG/Universal Images Group via Getty Images Regular gas price today: $4.02 a gallon Regular gas price increase: 41.7% ($1.18) from a year ago Diesel gas price today: $6.06 a gallon Diesel gas price increase: 73.1% ($2.56) from a year ago 21. Regular gas price today: $4.53 a gallon Regular gas price increase: 41.8% ($1.34) from a year ago Diesel gas price today: $6.47 a gallon Diesel gas price increase: 79.3% ($2.86) from a year ago 20. Regular gas price today: $3.70 a gallon Regular gas price increase: 42.0% ($1.10) from a year ago Diesel gas price today: $5.75 a gallon Diesel gas price increase: 76.5% ($2.49) from a year ago 19. Minnesota : Michael Siluk/UCG/Universal Images Group via Getty Images Regular gas price today: $4.07 a gallon Regular gas price increase: 42.0% ($1.21) from a year ago Diesel gas price today: $6.16 a gallon Diesel gas price increase: 69.8% ($2.53) from a year ago 18. Montana SAVAGE, MONTANA - SEPTEMBER 21: Valley Fuel & Supply gas station is seen September 21, 2026 in Savage, Montana. (Photo by Lauren Miller/Montana Free Press/CatchLight via Getty Images) Lauren Miller/Montana Free Press/CatchLight via Getty Images Regular gas price today: $4.30 a gallon Regular gas price increase: 42.2% ($1.28) from a year ago Diesel gas price today: $6.16 a gallon Diesel gas price increase: 74.4% ($2.63) from a year ago 17. New Hampshire : Snap Decision/UCG/Universal Images Group via Getty Images Regular gas price today: $4.16 a gallon Regular gas price increase: 42.4% ($1.24) from a year ago Diesel gas price today: $6.34 a gallon Diesel gas price increase: 67.8% ($2.56) from a year ago 16. Texas RONALDO SCHEMIDT / AFP via Getty Images Regular gas price today: $3.65 a gallon Regular gas price increase: 42.8% ($1.09) from a year ago Diesel gas price today: $5.74 a gallon Diesel gas price increase: 80.4% ($2.56) from a year ago 15. Missouri Whitney Curtis for The Washington Post via Getty Images Regular gas price today: $3.83 a gallon Regular gas price increase: 43.4% ($1.16) from a year ago Diesel gas price today: $6.05 a gallon Diesel gas price increase: 78.7% ($2.67) from a year ago 14. Regular gas price today: $3.88 a gallon Regular gas price increase: 43.5% ($1.18) from a year ago Diesel gas price today: $6.00 a gallon Diesel gas price increase: 73.5% ($2.54) from a year ago 13. Regular gas price today: $4.09 a gallon Regular gas price increase: 44.5% ($1.26) from a year ago Diesel gas price today: $6.01 a gallon Diesel gas price increase: 79.0% ($2.65) from a year ago 12. Arkansas A vehicle is refueled at an Exxon Mobil gas station in Little Rock, Arkansas, US, on Thursday, April 3, 2025. Wall Street economists said the US risks a recession this year and inflation could return to pandemic levels following the Trump administration's announcement of major tariffs on global trading partners. Photographer: Regular gas price today: $3.76 a gallon Regular gas price increase: 44.6% ($1.16) from a year ago Diesel gas price today: $5.87 a gallon Diesel gas price increase: 76.7% ($2.55) from a year ago 11. Mississippi Drivers wait in line to refuel at a gas station after Hurricane Ida in Hancock County, Mississippi, U.S., on Wednesday, Sep. 1, 2021. The electric utility that serves New Orleans has restored power to a small section of the city after Hurricane Ida devastated the region's grid. Photographer: Regular gas price today: $3.77 a gallon Regular gas price increase: 45.4% ($1.18) from a year ago Diesel gas price today: $5.82 a gallon Diesel gas price increase: 79.0% ($2.57) from a year ago 10. Kentucky Fuel pumps at a Murphy USA gas station in La Grange, Kentucky, U.S., on Saturday, Jan. 29, 2022. Murphy USA Inc. is expected to release earnings figures on February 2. Photographer: Regular gas price today: $3.89 a gallon Regular gas price increase: 45.6% ($1.22) from a year ago Diesel gas price today: $6.11 a gallon Diesel gas price increase: 79.3% ($2.70) from a year ago 9. Regular gas price today: $4.01 a gallon Regular gas price increase: 46.0% ($1.26) from a year ago Diesel gas price today: $6.06 a gallon Diesel gas price increase: 72.4% ($2.54) from a year ago 8. Regular gas price today: $4.30 a gallon Regular gas price increase: 46.2% ($1.36) from a year ago Diesel gas price today: $6.35 a gallon Diesel gas price increase: 78.2% ($2.79) from a year ago 7. Colorado Michael Ciaglo/For The Washington Post via Getty Images Regular gas price today: $4.20 a gallon Regular gas price increase: 47.0% ($1.34) from a year ago Diesel gas price today: $6.38 a gallon Diesel gas price increase: 80.9% ($2.85) from a year ago 6. Regular gas price today: $4.71 a gallon Regular gas price increase: 47.0% ($1.51) from a year ago Diesel gas price today: $6.62 a gallon Diesel gas price increase: 76.3% ($2.87) from a year ago 5. Regular gas price today: $4.16 a gallon Regular gas price increase: 47.5% ($1.34) from a year ago Diesel gas price today: $6.11 a gallon Diesel gas price increase: 78.4% ($2.69) from a year ago 4. Regular gas price today: $4.09 a gallon Regular gas price increase: 48.1% ($1.33) from a year ago Diesel gas price today: $6.01 a gallon Diesel gas price increase: 73.3% ($2.54) from a year ago 3. Regular gas price today: $3.80 a gallon Regular gas price increase: 48.3% ($1.24) from a year ago Diesel gas price today: $5.85 a gallon Diesel gas price increase: 78.0% ($2.57) from a year ago 2. Regular gas price today: $4.52 a gallon Regular gas price increase: 52.1% ($1.55) from a year ago Diesel gas price today: $6.66 a gallon Diesel gas price increase: 78.9% ($2.94) from a year ago 1. Regular gas price today: $4.23 a gallon Regular gas price increase: 53.2% ($1.47) from a year ago Diesel gas price today: $6.31 a gallon Diesel gas price increase: 80.6% ($2.82) from a year ago Read the original article on Business Insider

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