Agkistrodon contortrix, commonly known as the Copperhead, is native to the United States. It is predominantly found in the eastern and central regions, including parts of the Midwest and the South. Specific states where Copperheads are commonly found include Texas, Oklahoma, Kansas, Illinois, and as far east as New York and Massachusetts.

The typical habitat for the Copperhead includes deciduous forests, mixed woodlands, rocky outcrops, and near water sources such as rivers or streams. They are commonly found in areas that provide adequate cover such as fallen leaves or logs.

Copperheads are ambush predators and rely on their camouflage to blend into their surroundings. They primarily feed on small mammals, birds, and occasionally amphibians and insects. They play a significant role in controlling the populations of their prey species and are an integral part of their ecosystem's food chain.