JOHNSTON, IOWA – In 2023, Iowa ethanol production increased to a record-breaking 4.6 billion gallons, up from the previous record of 4.5 billion gallons in 2022. Solid corn production combined with some of the most efficient plants in the world drove Iowa ethanol production forward.

“Given relatively stable ethanol demand over the last few years, it was a pleasant surprise to crunch the numbers and find Iowa ethanol producers again increased production,” stated Iowa Renewable Fuels Association (IRFA) Executive Director Monte Shaw. “It is a testament to the innovation and efficiency of both Iowa corn growers and ethanol producers. Looking forward, in order to provide opportunities for further growth in the short term we need to see year-round E15 finalized quickly. But we also have the opportunity to unlock a new market, sustainable aviation fuel, that can drive massive biofuels growth for the next three decades.”

U.S. ethanol production in 2023 exceeded 15.5 billion gallons, with Iowa producing roughly 30 percent. Annual Iowa ethanol production capacity has increased to approximately 4.7 billion gallons and could grow dramatically if ethanol demand increased.

The IRFA compiled production information from an industry survey, public reports, and other industry sources.


The Iowa Renewable Fuels Association represents the state’s liquid renewable fuels industry and works to foster its growth. Iowa is the nation’s leader in renewable fuels production with 42 ethanol refineries capable of producing 4.7 billion gallons annually – including 34 million gallons of annual cellulosic ethanol production capacity – and 10 biodiesel facilities with the capacity to produce 400 million gallons annually. For more information, visit the Iowa Renewable Fuels Association website at:

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