Per ethanol grade

Data on gasoline-ethanol blend consumption by specific blend level remains unavailable at the federal level. A few preeminent ethanol-producing states, such as Minnesota and Iowa, publish detailed data on fuel sales by blend level; however, collectively, they represent only a small portion of total U.S. gasoline consumption. Their figures are not representative of national blend penetration, as these states actively promote ethanol use through incentives and policy support.

Due to the lack of reliable demand data, the number of retail stations offering E15 and E85 is commonly used as a proxy for national market penetration of these blends.

At the end of 2024, an estimated 3,003 retail stations in the U.S. offered E15, while 5,073 offered E85. Based on an estimated 168,000 t