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Pima County ( / ˈpiːmə / PEE-mə) is a county in the south central region of the U.S. state of Arizona. As of the 2020 census, the population was 1,043,433, [1] making it Arizona's second-most populous county. The county seat is Tucson, [2] where most of the population is centered.
Pima County Government services and news including Tucson, Marana, Ajo, Oro Valley, Sahuarita, Three Points and Arivaca.
Given its wealth of pre-Columbian archeology, history, and historic routes, such as the Anza Trail, as well as the living cultures of Native American tribes, Pima County is a hub for those looking for a unique sense of place and many learning opportunities.
Find thrilling outdoor activities in Pima County, Arizona! Explore exciting attractions, including museums, golf courses, and scenic hiking and biking trails.
94.2% of the residents in Pima County, AZ are U.S. citizens. The largest universities in Pima County, AZ are University of Arizona (11,858 degrees awarded in 2022), Pima Community College (4,307 degrees), and Pima Medical Institute-Tucson (105534) (1,311 degrees).
Recent archaeological digs along the Santa Cruz River near Tucson suggest that this area is one of the oldest continuously inhabited areas of the United States, with irrigation canals that may be the oldest in North America. Discover more information about the History of Pima County, Arizona.
Discover Pima County. Southern Arizona and the Sonoran Desert have lots to offer. Before you start your adventure, be sure to visit our Southern Arizona Heritage and Visitor Center. You can’t miss us – we’re located in downtown Tucson, Arizona inside the Pima County Historic Courthouse.
