Arizona Department

The Arizona Department (1865−1867) was a department of the Second Mexican Empire, located in the present day state of Sonora in Northwestern Mexico.
It was established by an imperial decree on March 3, 1865, which specified:
It was directly south of the U.S. Arizona Territory, the present day state of Arizona. It was one among the 50 departments of the Second Mexican Empire and was administered by the prefect José Moreno Bustamante. The population of the department in the year 1865 was 25,603.