Appalachia is the largest producer of coal in the United States, particularly in states like West Virginia and Kentucky.

The Appalachia region, encompassing states like West Virginia, Kentucky, and Virginia, has historically been the largest coal-producing area in the United States. The region is rich in both bituminous and anthracite coal, which has fueled the U.S. economy for decades, particularly for electricity generation and industrial use. Despite a decline in coal's dominance due to environmental regulations and competition from natural gas and renewables, coal remains a crucial part of Appalachia's economic and cultural identity. This area's coal deposits continue to supply a significant portion of the nation's energy needs.​