Find E85 flex fuel stations throughout Iowa. Use the interactive map below to locate stations near you.
Excellent E85 coverage! Stations are widely available throughout the state.
Explore verified station listings, retailer details, and pricing context for the busiest E85 markets in Iowa.
Iowa offers flex fuel drivers the most comprehensive E85 infrastructure of any corn belt state, with 298 stations—among the top three nationally. As America's dominant ethanol producer, Iowa provides abundant, affordable E85 virtually everywhere.
Iowa's 42 ethanol plants produce approximately 4.6 billion gallons annually—far exceeding any other state. Iowa converts 62% of its corn crop into ethanol, making the state the nation's first processor of its own corn.
Major producers include POET (12 Iowa plants totaling ~1,190 MGY), Valero (5 plants producing 740 MGY), ADM (3 plants at 777 MGY), and Homeland Energy Solutions in New Hampton (225 MGY).
Iowa retailers collect a $0.16-per-gallon state tax credit on E85 sales through January 1, 2028 (AFDC law 6425), which is the primary reason Iowa E85 pricing stays so aggressive at the pump. The Iowa Renewable Fuels Infrastructure Program (RFIP) has invested over $57.7 million in biofuel infrastructure, funding 350+ E85 dispensers and covering up to 90% of equipment costs (max $75,000). State fleet vehicles must use E85 for at least 60% of fuel purchases.
Major metropolitan areas offer exceptional access: Des Moines (13+ stations), Cedar Rapids (14+), Sioux City, Waterloo/Cedar Falls, and the Quad Cities. Virtually every Iowa county has at least one E85 station. Casey's General Stores is headquartered in Ankeny.
Interstate travelers are well-served: I-80 (east-west) has excellent coverage including the famous Iowa 80 Truckstop, I-35 (north-south) offers strong coverage, and I-29 and I-380 both feature multiple stations.
E85 typically costs $0.50-$1.00+ less per gallon than regular gasoline—among the best discounts nationally due to minimal transportation from plant to pump.
Iowa's E85 ethanol content varies seasonally: 85% in summer, dropping to 70% in winter for reliable cold-weather starting. Casey's became the 5,000th E85 station nationwide in 2020.
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Iowa produced 4.6 billion gallons of ethanol in 2025 — roughly 28% of total U.S. output — across 42 refineries with a combined capacity above 5 billion gallons per year, according to the Iowa Renewable Fuels Association. Iowa processed about 1.5 billion bushels of corn for ethanol in 2025, and biofuels contribute roughly $5.4 billion to state GDP. Iowa remains the nation's #1 ethanol-producing state, though output has been flat for three years.
Yes. The Iowa E85 Gasoline Promotion Tax Credit pays retailers $0.16 per gallon of E85 sold and is active through January 1, 2028 (claimed on Form IA 135, credit code 55). The Iowa Renewable Fuels Infrastructure Program adds cost-share grants for E15, E85, and biodiesel equipment — the state has invested over $63 million since 2006, matched by more than $270 million in private funding, with 108 new projects approved in December 2025.
Yes. Iowa Code requires state-fleet flex-fuel vehicles to fuel with E85 where reasonably available, and state diesel vehicles to use biodiesel blends of B2 through B99. The policy, combined with retailer incentives and a dense Casey's General Stores network (headquartered in Ankeny), underpins Iowa's strong E85 availability in every major metro.
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