About This Place
Green Valley is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 17,283 at the 2000 census.
Green Valley is located at 31°51′N 111°0′W / 31.85°N 111°W / 31.85; -111 (31.8556, -111.0001).
According to the United States Census Bureau, the CDP has a total area of 26.3 square miles (68.0 km²), of which, 26.2 square miles (68.0 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.08%) is water.