Santa Cruz County is a small county located in southern Arizona. It serves as the gateway to North America's most important port of entry, Nogales, Sonora, Mexico. Its twin border town, Nogales, Arizona, is located across the border crossing. As of the 2010, its population was 47,420.
Santa Cruz County’s climate is described as being semi-arid with low humidity and moderate seasonal changes. It is warm during the summer months with temperatures usually in the 70's and cold during the winter months with temperatures usually in the 40's. However, there is a huge drop in temperature from day to night with a drop of about 30 degrees Fahrenheit during the summer and 37 degrees Fahrenheit during the winter.
The land consists of high desert terrain with gently sloping hills leading up to the the San Cayetano, Santa Cruz, and Patagonia Mountains, tree-lined river banks, and acres of open space. The Santa Cruz River is usually a dry riverbed throughout much of the year, unless the area receives significant rainfall.
Total Area: 1,238.11 square miles
Land Area: 1,237.63 square miles
Water Area: 0.47 square miles