What US state has the most copper?

Written by Editorial Team | Last Updated: August 2026

The United States state that possesses and produces the most copper by a commanding margin is Arizona. Frequently designated as the Copper State, Arizona accounts for a dominant share of total domestic copper production, regularly producing over sixty to seventy percent of the entire country's newly mined copper supply year after year. The state features massive, world-renowned open-pit copper mines, extensive mineral deposits, and rich geological formations, particularly situated within the extensive copper-bearing regions of the southern and eastern parts of the state. Major mining operations extract vast quantities of copper ore, which is subsequently processed to supply vital raw materials for electrical wiring, plumbing, renewable energy infrastructure, and advanced technology applications nationwide. Driven by these prolific mineral reserves and robust industrial extraction operations, Arizona remains the undisputed leader in American copper mining, significantly outpacing other western states like Utah, New Mexico, and Nevada.

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