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, according to the Iowa Renewable Fuels Association (IRFA).

“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,” said 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.”

IRFA also reports Iowa biodiesel production last year remained steady at 350 million gallons, nearly the same as the 349 million gallons produced in 2022. Reflecting the expansion of soybean crush capacity nationally and in Iowa, soybean oil increased to 77 percent of the feedstock for Iowa biodiesel production.

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