World Corn Production: Ranking of Countries & States (FAO)
The United States is the largest producer of corn in the world followed by China, Brazil, Iowa & Argentina.

World corn production by country and state
The United States is the largest producer of corn in the world followed by China, Brazil, Iowa & Argentina.
Eight (8) countries and four (4) states produce over 1 billion bushels of corn.
Seven (7) states rank in the top 15 largest corn producers in the world.