Leading U.S. states based on installed ethanol biorefineries 2021
Iowa had the most operating ethanol biorefineries among all U.S. states, with 43 installed ethanol biorefineries in 2021. By comparison, Nebraska ranked second with 26 sites, while Missouri had six biorefineries.
That year, Iowa also had the largest ethanol production capacity in the U.S., at 4.7 billion gallons per year.
That year, Iowa also had the largest ethanol production capacity in the U.S., at 4.7 billion gallons per year.
