History
The Border Patrol Station in Nogales, Arizona was established on July 1, 1924. The Nogales Border Patrol Station consisted of two Immigration Patrol Inspectors covering twenty- seven miles of the International Boundary between the United States and Mexico.

Area of Responsibility
As of May, 2007, the Nogales Border Patrol Station has become the largest Border Patrol Station in the United States. Agents are tasked to patrol 1,100 square miles of rough terrain, including 32 miles of International Border. Nogales Station’s area encompasses many urban areas like Nogales, Rio Rico, Tubac, Patagonia, Amado, and Green Valley. The Coronado National Forest is also a large part of the western sector of Nogales area of responsibility.