Santa Cruz County
For the county with the same name in California, see: Santa Cruz County. The county of Santa Cruz is one of the 15 counties of the American State of Arizona. The county seat and its largest city is Nogales. The county has an area of 3,207 km², the population of 38,381 inhabitants, and the population density is 12 hab / km². This county was founded in 1899.76% of the population is of Hispanic origin.