Iowa has the most number of operating ethanol biorefineries among all U.S. states. As of 2024, there were ** such refineries in the Midwestern state. Nebraska ranked second that year with ** sites. Meanwhile, Missouri and North Dakota each had *** biorefineries. Iowa also has the largest ethanol production capacity in the United States.
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RFA. (February 20, 2025). States with the highest number of ethanol biorefineries installed in the United States in 2024 [Graph]. In ÀÖ²¥´«Ã½app×îа汾. Retrieved August 18, 2026, from /statistics/374464/leading-us-states-based-ethanol-biorefineries-installed/
RFA. "States with the highest number of ethanol biorefineries installed in the United States in 2024." Chart. February 20, 2025. ÀÖ²¥´«Ã½app×îа汾. Accessed August 18, 2026. /statistics/374464/leading-us-states-based-ethanol-biorefineries-installed/
RFA. (2025). States with the highest number of ethanol biorefineries installed in the United States in 2024. ÀÖ²¥´«Ã½app×îа汾. ÀÖ²¥´«Ã½app×îа汾 Inc.. Accessed: August 18, 2026. /statistics/374464/leading-us-states-based-ethanol-biorefineries-installed/
RFA. "States with The Highest Number of Ethanol Biorefineries Installed in The United States in 2024." ÀÖ²¥´«Ã½app×îа汾, ÀÖ²¥´«Ã½app×îа汾 Inc., 20 Feb 2025, /statistics/374464/leading-us-states-based-ethanol-biorefineries-installed/
RFA, States with the highest number of ethanol biorefineries installed in the United States in 2024 ÀÖ²¥´«Ã½app×îа汾, /statistics/374464/leading-us-states-based-ethanol-biorefineries-installed/ (last visited August 18, 2026)
States with the highest number of ethanol biorefineries installed in the United States in 2024 [Graph], RFA, February 20, 2025. [Online]. Available: /statistics/374464/leading-us-states-based-ethanol-biorefineries-installed/
