The U.S. state known for its potatoes is Idaho. The state is famous for producing a significant portion of the nation’s potato crop due to its ideal growing conditions, including rich volcanic soil, abundant water supply, and a favorable climate. The Idaho potato is well-known for its quality and taste, and many varieties are cultivated, including the popular russet potato, which is sought after for baking and frying. Idaho is also home to the Idaho Potato Commission, which promotes the state's potato industry. As a result, Idaho has earned a reputation synonymous with quality potatoes in the United States.