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

• 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.

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

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

1. North Carolina
   

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

1. Oregon
   

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

1. Alaska
   

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

1. Hawaii
   

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

1. California
   

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

1. Georgia
   

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

1. Florida
   

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

1. Indiana
   

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

1. Arizona
   

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

1. Nevada
   

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

1. Idaho
   

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

1. Maryland
   

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

1. Delaware
   

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

1. South Carolina
   

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

1. Virginia
   

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

1. Pennsylvania
   

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

1. New Jersey
   

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

1. Connecticut
   

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

1. Vermont
   

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

1. Massachusetts
   

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

1. New York
   

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

1. West Virginia
   

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

1. Alabama
   

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

1. Maine
   

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

1. Tennessee
   

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

1. Rhode Island
   

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

1. Ohio
   

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

1. North Dakota
   

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

1. Utah
   

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

1. Louisiana
   

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

1. Minnesota
   

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

1. Montana
   

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

1. New Hampshire
   

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

1. Texas
   

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

1. Missouri
   

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

1. Kansas
   

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

1. South Dakota
   

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

1. Arkansas
   

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

1. Mississippi
   

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

1. Kentucky
   

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

1. Iowa
   

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

1. Wyoming
   

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

1. Colorado
   

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

1. Illinois
   

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

1. Nebraska
   

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

1. New Mexico
   

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

1. Oklahoma
   

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

1. Michigan
   

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. Wisconsin
   

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

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