Wellton Hills is a census-designated place in Yuma County, in the U.S. state of Arizona.

[4] According to the U.S. Census Bureau, the community has an area of 0.639 square miles (1.66 km2), all land.

[4] Wellton Hills is located across from the Barry M. Goldwater Air Force Range.

Wellton Hills terrain consists of the Sonoran Desert.

This range is both used by the Department of Defense for training purposes and is a major hub for illegal immigration.