Iowa gas prices
Iowa gas prices usually run below the national average. The state is in the heart of PADD 2 with pipeline access from the Gulf Coast and Midwest refineries. Iowa also produces more ethanol than any other state, which keeps the price of E10 and E15 blends competitive.
Ethanol is a big deal here. Iowa's corn-based ethanol industry means the state has abundant supplies of ethanol for blending into gasoline. E15 (15% ethanol) is widely available and typically cheaper than regular E10. Diesel matters a lot too. Iowa is one of the top agricultural states, and farming operations are sensitive to diesel cost swings.
Price history
How does ethanol production affect Iowa gas prices?
Iowa is the largest ethanol producer in the US. Abundant local ethanol supply keeps blended fuel prices competitive. E15 is widely available at Iowa stations and is usually 5 to 15 cents cheaper per gallon than regular E10.
Is E15 safe for my car?
E15 is approved by the EPA for all vehicles from 2001 and newer. Most gas stations in Iowa offer it, and it burns fine in modern engines. Older vehicles and small engines like lawnmowers should stick with E10 or ethanol-free gas.
Why does diesel matter so much in Iowa?
Iowa is a top agricultural state. Tractors, combines, grain dryers, and farm trucks all run on diesel. When diesel prices spike, farming costs go up, which can affect food prices downstream. Iowa farmers watch diesel prices as closely as crop futures.