Iowa Biofuels Industry at a Glance

  •  42 Ethanol Refineries
    • Over 5 billion gallons of annual production capacity, including 34 million gallons of annual cellulosic ethanol production capacity.
    • Over 1 billion bushels of corn demand.
  • 8 Biodiesel Refineries
    • 408 million gallons of annual production capacity.
  • 328 E85 Stations Across Iowa
    • Over 100 of these stations have blender pumps, offering E85 and mid-level ethanol blends

Ethanol Production

Year Iowa Production (millions of gallons) U.S. Production (millions of gallons)
2025 4,600 16,400
2024 4,600 16,219
2023 4,600 15,500
2022 4,500 15,361
2021 4,400 15,015
2020 3,700 13,926
2019 4,200 15,800
2018 4,350 16,100
2017 4,200 15,800
2016 4,100 15,410
2015 4,000 14,700
2014 3,900 14,313
2013 3,700 13,293
2012 3,700 13,218
2011 3,700 13,929
2010 3,500 13,298
2009 3,200 10,938
2008 2,750 9,309
2007 1,900 6,521
2006 1,500 4,884
2005 1,100 3,904
2004 859 3,404
2003 598 2,810
2002 440 2,140
2001 440 1,765
2000 440 1,622
1999 440 1,465
1998 424 1,405
1997 424 1,288
1996 424 1,088
1995 424 1,358
1994 424 1,289
1993 375 1,154
1992 300 985
1991 237.5 866
1990 212.5 848
1989 212.5 843
1988 175 831
1987 175 819
1986 125 712
1985 67.5 617
1984 67.5 510
1983 52.5 415
1982 42.5 350
1981 35 215
1980 25 175

 

Iowa Ethanol Usage

Year E10 Market Share E15 Market Share E85 and Mid Level Blends Market Share Total Ethanol Market Share
2024 77.7% 1,005 mg 19.9% 257 mg 2.3% 30 mg 87%
2023 83.2% 979 mg 15.1% 178 mg 1.6% 19 mg 87.6%
2022 87.3% 972 mg 10.9% 121 mg 1.8% 19.6 mg 87.3%
2021 91.3% 1,127 mg 6.9% 86.9 mg 1.6% 19.3 mg 87.1%
2020 79.4% 1,064 mg 4.5% 60.6 mg 1.2% 16.0 mg 85.1%
2019 82.1% 1,284 mg 3.1% 49.0 mg 1.3% 20.1 mg 86.5%
2018 83.4% 1,300 mg 2.3% 35.5 mg 1.4% 21.2 mg 87.0%
2017 84.1% 1,315 mg 1.8% 27.7 mg 1.4% 21.7 mg 87.2%
2016 84.9% 1,349 mg 0.3% 5.5 mg 1.0% 16.5 mg 86.3%
2015 84.5% 1,319 mg 0.4% 6.2 mg 1.0% 15.7 mg 85.9%

Biodiesel Production

Year Iowa Production (millions of gallons) U.S. Production (millions of gallons)
2025 266
2024 353 2,090
2023 350 2,086
2022 349 2,255
2021 340 2,409
2020 351 1,790
2019 342 1,725
2018 365 1,857
2017 286 1,596
2016 297 1,566
2015 242 2,090
2014 227 1,750
2013 230 1,800
2012 184 1,100
2011 169 1,100
2010 48 315
2009 85 545
2008 112 700
2007 75 450
2006 60 250
2005 20 11

Iowa Biodiesel Usage

Year   Biodiesel Blended Gallons

(millions of gallons)

   Average Blend Level

(of blended gallons)

   Percentage of Total Diesel Sales

 
2024 482 11% 71%
2023 444 14% 71.4%
2022 454.0 13.7% 69%
2021 421.0 11% 89.6%
2020 493.7 13.5% 60.7%
2019 495.1 13.3% 59.1%
2018 458.9 12.6% 55.5%
2017 425.5 13.4% 51.4%
2016 379.8 12.1% 45.1%
2015 342.0 11.0% 41.3%
2014 354.8 9.4% 48.9%
2013 347.8 8.3% 49.2%
2012 285.8 8.1% 42.5%
2011 246.0 5.7% 33.7%
2010 239.8 3.1% 32.4%
2009 205.2 3.6% 31.9%