Iowa is the largest producer of corn in the United States.

Quick answer

  • The state that produces the most corn is Iowa , often called “The Corn State” because of how much of its land is used for agriculture and corn fields.
  • Recent production rankings show Iowa at or above about 2.3–2.6 billion bushels of corn per year, keeping it at #1 among U.S. states.

A bit more context

  • Illinois usually comes in second, followed by major producers like Nebraska and Minnesota, so the core “Corn Belt” runs through these Midwestern states.
  • While exact bushel totals change year to year, Iowa has consistently held the top spot in recent data and outlooks for 2024–2025.

Why Iowa leads

  • Iowa has very fertile soil, a favorable climate, and a huge share of land devoted to row-crop farming, which all support very high corn yields.
  • Corn from Iowa supports livestock feed, ethanol, and food ingredients, making it central to both the U.S. farm economy and global corn markets.

TL;DR: For “which state is the largest producer of corn,” the clear current answer is Iowa.

Information gathered from public forums or data available on the internet and portrayed here.