Cite Leading U.S. Mining State Updated February 23, 2017 | Factmonster Staff The Question: Which U.S. state produces the most coal? The Answer: When it comes to coal mining in the United States, Wyoming leads the way. The Cowboy State produced more than 431 million tons of coal in 2009. West Virginia followed, producing over 137 million tons. -The Fact Monster Sources + Our Common Sources ✖ MoreFeaturesGamesPollsTimelinesQuizzes See also: The Least Populous State in the U.S.