Pima County is a county located in the U.S. state of Arizona. As of the most recent data available, the county has a population of approximately 843,746 people, with a population density of about 91.84 persons per square mile.
The county spans a total land area of 9,187.00 square miles (23,794.00 square kilometers). The administrative center and county seat is Tucson, which often serves as a hub for local governance and services. The largest city within the county by population is Tucson.
Geographically, Pima County experiences varied elevations, with its highest point at Arivaca 3,629 ft and its lowest point at Marana 0 ft. The region operates in the UTC-5.