Thatcher is a town in Graham County, Arizona, United States. According to the 2010 Census, the population of the town is 4,865. It is part of the Safford Micropolitan Statistical Area.
Thatcher is located at 32°49′58″N 109°45′46″W / 32.83278°N 109.76278°W / 32.83278; -109.76278 (32.832685, -109.762879).
The town is centered in the Upper Gila River Valley with one of Arizona's famous Madrean Sky Islands towering to the south and the Gila River to the north.