Average Corn Yield per Acre: Top 11 States

State Corn Yield Per Acre: Causes of Variations

An analysis of state average corn yield history data provided by the USDA NASS indicates there are two causes of corn yield (in bushel per acre) variations at the regional level in the United States.  These variations impact US state corn production.  Each is important for creating an accurate corn yield forecast.  The causes of year-to-year crop and soybean yield variations at the state and national level are:

  1. The Technology Trend – many types of technology are improving yields for both soybeans and corn. The result is an increase in how much corn crop per acre can be produced on a piece of farmland.   The charts below show corn and soybean yields from 1986 to 2017 as reported by the USDA. The general upward slope of the line is the technology trend.
  2. Weather conditions during the corn growing season – after removing the effect of the technology trend, the impact of weather on the corn crop can be estimated.  The variations around the upward trend in the data the charts below are caused by weather conditions during the US growing season.  CropProphet uses the evolving weather conditions during each crop season to forecast the end of season yield and production.
  3. State to state differences in weather conditions and soil type and nutrients levels.  The graphic below shows the 2019 corn yield by state. There are a wide range of variations in the state average corn yield.

2019 Top Corn Yield per acre States

Follow this link if you are interested in state soybean yield per acre rankings.

State Average Corn Yield Per Acre – 2019 Top 11:

The top 11 average state corn yield per acre for 2019 was:

  1. Oregon
  2. Washington
  3. Arizona
  4. Idaho
  5. Iowa
  6. Nebraska
  7. Illinois
  8. Tenessee
  9. Arkansas
  10. Minnesota
  11. Mississippi

However, because Oregon, Washington, Arizona, and Idaho do not have anywhere near as many planted corn acres (and therefore harvested corn) they produce significantly less corn than Midwestern states.  

The historical corn yield of several of the significant corn-producing states is shown below. 

State Historical Corn Yields

Iowa

Iowa Corn Yield per Acre 1960-2019
Iowa Corn Yield: 1960-2019

Illinois

Illinois Corn Yield per Acre 1960-2019
Illinois Corn Yield: 1960-2019

Indiana

Indiana Corn Yield per Acre 1960-2019
Indiana Corn Yield: 1960-2019

The rankings of the top 11 states for average corn yields from 2018 to 2000 are:

State Average Corn Yield Per Acre: The Top 11 of 2018

The top 11 state average corn yield for 2018 was:

#1, Arizona: 220 Bu/Ac
#1, Washington: 220 Bu/Ac
#3, Idaho: 213 Bu/Ac
#4, Illinois: 210 Bu/Ac
#5, Iowa: 196 Bu/Ac
#6, Oregon: 195 Bu/Ac
#7, Nebraska: 192 Bu/Ac
#8, Indiana: 189 Bu/Ac
#9, New Mexico: 187 Bu/Ac
#9, Ohio: 187 Bu/Ac
#11, Mississippi: 185 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2017

The top 11 state average corn yield for 2017 was:

#1, Washington: 225 Bu/Ac
#2, Oregon: 212 Bu/Ac
#3, Idaho: 203 Bu/Ac
#4, Iowa: 202 Bu/Ac
#5, Illinois: 201 Bu/Ac
#6, Arizona: 195 Bu/Ac
#7, Minnesota: 194 Bu/Ac
#8, Delaware: 189 Bu/Ac
#8, Mississippi: 189 Bu/Ac
#10, Louisiana: 184 Bu/Ac
#11, Arkansas: 183 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2016

The top 11 state average corn yield for 2016 was:

#1, Washington: 235 Bu/Ac
#2, Oregon: 230 Bu/Ac
#3, Arizona: 215 Bu/Ac
#4, Iowa: 203 Bu/Ac
#5, Illinois: 197 Bu/Ac
#6, Minnesota: 193 Bu/Ac
#7, Idaho: 188 Bu/Ac
#8, California: 185 Bu/Ac
#9, Nebraska: 178 Bu/Ac
#9, Wisconsin: 178 Bu/Ac
#11, Utah: 175 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2015

The top 11 state average corn yield for 2015 was:

#1, Washington: 215 Bu/Ac
#2, Arizona: 210 Bu/Ac
#3, Idaho: 207 Bu/Ac
#4, Delaware: 192 Bu/Ac
#4, Iowa: 192 Bu/Ac
#6, Minnesota: 188 Bu/Ac
#6, Oregon: 188 Bu/Ac
#8, Nebraska: 185 Bu/Ac
#9, Arkansas: 181 Bu/Ac
#10, New Mexico: 180 Bu/Ac
#11, Illinois: 175 Bu/Ac
#11, Mississippi: 175 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2014

The top 11 state average corn yield for 2014 was:

#1, Washington: 215 Bu/Ac
#2, Arizona: 210 Bu/Ac
#3, Delaware: 200 Bu/Ac
#3, Idaho: 200 Bu/Ac
#3, Illinois: 200 Bu/Ac
#6, New Mexico: 195 Bu/Ac
#7, Oregon: 190 Bu/Ac
#8, Indiana: 188 Bu/Ac
#9, Arkansas: 187 Bu/Ac
#10, Missouri: 186 Bu/Ac
#11, Mississippi: 185 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2013

The top 11 state average corn yield for 2013 was:

#1, Washington: 215 Bu/Ac
#2, California: 191 Bu/Ac
#3, New Mexico: 190 Bu/Ac
#4, Oregon: 188 Bu/Ac
#5, Arkansas: 186 Bu/Ac
#6, Idaho: 181 Bu/Ac
#7, Illinois: 178 Bu/Ac
#8, Arizona: 177 Bu/Ac
#8, Indiana: 177 Bu/Ac
#10, Mississippi: 176 Bu/Ac
#11, Georgia: 175 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2012

The top 11 state average corn yield for 2012 was:

#1, Washington: 215 Bu/Ac
#2, Oregon: 205 Bu/Ac
#3, Arizona: 195 Bu/Ac
#3, Idaho: 195 Bu/Ac
#5, California: 180 Bu/Ac
#5, Georgia: 180 Bu/Ac
#7, Arkansas: 178 Bu/Ac
#8, Louisiana: 173 Bu/Ac
#9, New Mexico: 170 Bu/Ac
#10, Utah: 167 Bu/Ac
#11, Minnesota: 165 Bu/Ac
#11, Mississippi: 165 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2011

The top 11 state average corn yield for 2011 was:

#1, Washington: 225 Bu/Ac
#2, Oregon: 215 Bu/Ac
#3, Idaho: 189 Bu/Ac
#4, California: 181 Bu/Ac
#5, New Mexico: 180 Bu/Ac
#6, Arizona: 178 Bu/Ac
#7, Iowa: 172 Bu/Ac
#8, Utah: 164 Bu/Ac
#9, Nebraska: 160 Bu/Ac
#10, Georgia: 159 Bu/Ac
#11, Illinois: 157 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2010

The top 11 state average corn yield for 2010 was:

#1, Arizona: 210 Bu/Ac
#2, Washington: 205 Bu/Ac
#3, Oregon: 200 Bu/Ac
#4, California: 192 Bu/Ac
#5, Idaho: 190 Bu/Ac
#6, New Mexico: 180 Bu/Ac
#7, Utah: 178 Bu/Ac
#8, Minnesota: 177 Bu/Ac
#9, Nebraska: 166 Bu/Ac
#10, Iowa: 165 Bu/Ac
#11, Wisconsin: 162 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2009

The top 11 state average corn yield for 2009 was:

#1, Oregon: 215 Bu/Ac
#1, Washington: 215 Bu/Ac
#3, New Mexico: 190 Bu/Ac
#4, Idaho: 185 Bu/Ac
#5, Iowa: 181 Bu/Ac
#6, California: 180 Bu/Ac
#7, Nebraska: 179 Bu/Ac
#8, Arizona: 175 Bu/Ac
#9, Illinois: 174 Bu/Ac
#9, Minnesota: 174 Bu/Ac
#11, Indiana: 171 Bu/Ac
#11, Ohio: 171 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2008

The top 11 state average corn yield for 2008 was:

#1, Washington: 205 Bu/Ac
#2, California: 195 Bu/Ac
#2, Oregon: 195 Bu/Ac
#4, New Mexico: 185 Bu/Ac
#5, Illinois: 179 Bu/Ac
#6, Iowa: 171 Bu/Ac
#7, Idaho: 170 Bu/Ac
#8, Arizona: 165 Bu/Ac
#9, Nebraska: 163 Bu/Ac
#10, Minnesota: 162 Bu/Ac
#11, Indiana: 160 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2007

The top 11 state average corn yield for 2007 was:

#1, Washington: 210 Bu/Ac
#2, Oregon: 200 Bu/Ac
#3, Arizona: 185 Bu/Ac
#4, California: 182 Bu/Ac
#5, New Mexico: 180 Bu/Ac
#6, Illinois: 175 Bu/Ac
#7, Iowa: 171 Bu/Ac
#8, Idaho: 170 Bu/Ac
#9, Arkansas: 169 Bu/Ac
#10, Louisiana: 163 Bu/Ac
#11, Nebraska: 160 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2006

The top 11 state average corn yield for 2006 was:

#1, Washington: 210 Bu/Ac
#2, New Mexico: 185 Bu/Ac
#3, Oregon: 180 Bu/Ac
#4, Arizona: 170 Bu/Ac
#4, Idaho: 170 Bu/Ac
#6, Iowa: 166 Bu/Ac
#7, California: 165 Bu/Ac
#8, Illinois: 163 Bu/Ac
#9, Minnesota: 161 Bu/Ac
#10, Ohio: 159 Bu/Ac
#11, Indiana: 157 Bu/Ac
#11, Utah: 157 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2005

The top 11 state average corn yield for 2005 was:

#1, Washington: 205 Bu/Ac
#2, Arizona: 195 Bu/Ac
#3, New Mexico: 175 Bu/Ac
#4, Minnesota: 174 Bu/Ac
#5, Iowa: 173 Bu/Ac
#6, California: 172 Bu/Ac
#7, Idaho: 170 Bu/Ac
#8, Utah: 163 Bu/Ac
#9, Oregon: 160 Bu/Ac
#10, Indiana: 154 Bu/Ac
#10, Nebraska: 154 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2004

The top 11 state average corn yield for 2004 was:

#1, Washington: 200 Bu/Ac
#2, Iowa: 181 Bu/Ac
#3, Arizona: 180 Bu/Ac
#3, Illinois: 180 Bu/Ac
#3, New Mexico: 180 Bu/Ac
#6, California: 175 Bu/Ac
#6, Idaho: 175 Bu/Ac
#8, Oregon: 170 Bu/Ac
#9, Indiana: 168 Bu/Ac
#10, Nebraska: 166 Bu/Ac
#11, Missouri: 162 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2003

The top 11 state average corn yield for 2003 was:

#1, Washington: 195 Bu/Ac
#2, Arizona: 190 Bu/Ac
#3, New Mexico: 180 Bu/Ac
#4, Oregon: 170 Bu/Ac
#5, Illinois: 164 Bu/Ac
#6, California: 160 Bu/Ac
#7, Iowa: 157 Bu/Ac
#8, Ohio: 156 Bu/Ac
#9, Utah: 155 Bu/Ac
#10, Indiana: 146 Bu/Ac
#10, Minnesota: 146 Bu/Ac
#10, Nebraska: 146 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2002

The top 11 state average corn yield for 2002 was:

#1, Washington: 190 Bu/Ac
#2, Arizona: 185 Bu/Ac
#3, New Mexico: 175 Bu/Ac
#4, California: 170 Bu/Ac
#5, Iowa: 163 Bu/Ac
#6, Oregon: 160 Bu/Ac
#7, Minnesota: 157 Bu/Ac
#8, Idaho: 155 Bu/Ac
#9, Colorado: 150 Bu/Ac
#10, Utah: 142 Bu/Ac
#11, Montana: 140 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2001

The top 11 state average corn yield for 2001 was:

#1, Arizona: 208 Bu/Ac
#2, Washington: 190 Bu/Ac
#3, New Mexico: 180 Bu/Ac
#4, California: 170 Bu/Ac
#5, Indiana: 156 Bu/Ac
#6, Illinois: 152 Bu/Ac
#7, Idaho: 150 Bu/Ac
#8, Louisiana: 148 Bu/Ac
#8, Montana: 148 Bu/Ac
#10, Nebraska: 147 Bu/Ac
#11, Delaware: 146 Bu/Ac
#11, Iowa: 146 Bu/Ac

State Average Corn Yield Per Acre: The Top 11 of 2000

The top 11 state average corn yield for 2000 was:

#1, Arizona: 196 Bu/Ac
#2, Washington: 185 Bu/Ac
#3, Oregon: 180 Bu/Ac
#4, California: 170 Bu/Ac
#5, Delaware: 162 Bu/Ac
#6, Idaho: 160 Bu/Ac
#6, New Mexico: 160 Bu/Ac
#8, Maryland: 155 Bu/Ac
#9, Illinois: 151 Bu/Ac
#10, Ohio: 147 Bu/Ac
#11, Indiana: 146 Bu/Ac
#11, Virginia: 146 Bu/Ac

CropProphet is an “ag weather” based corn and soybean yield/production forecasting system. It forecasts the end of season USDA corn and soybean yield and production. For example, starting in May and finishing in November, CropProphet forecasts US national average corn yield each year.

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