Santa Cruz County
There are 4 US Post Offices in Santa Cruz County serving a total of 44,001 residents equating to 11,000 residents per post office. It's estimated that approximately 70,231 packages are handled across the 4 county post offices annually. Santa Cruz is a county in southern Arizona. As of the 2015 census, its population is 46,461. The county seat is Nogales. The county was established in 1899. It borders between southern Arizona and northwestern Mexico's Sonora state. Santa Cruz County comprises the Nogales, AZ Micropolitan Statistical Area, which is also included in the Tucson-Nogales, AZ Combined Statistical Area. Santa Cruz County contains many vineyards."