Green Valley is a census-designated place in Pima County, Arizona with a total population of about 24,000. It is located twenty miles (32 km) southwest of Tucson and 40 miles (64 km) north of Nogales, Sonora, Mexico.
Surrounded by the cycling, hiking and birding areas of the Santa Rita Mountains, Green Valley is an unincorporated retirement community composed of nearly 60 homeowner associations. It is one of the best and well-known retirement communities in the U.S. In 2017 Forbes places Green Valley on their “25 Best Places To Retire” list.