Arizona, a state in the southwestern region of the United States of America, is known for its high population of Native Americans. Arizona has the third highest number (and the sixth highest percentage) of Native Americans of any state in the Union (See Demographics of Arizona). Out of the entire US population of 2.9 million Native Americans, roughly 286,680 live in Arizona, representing 10% of the country's total Native American population. Only California and Oklahoma have more Native Americans than Arizona by number. Arizona also has the highest proportion of land allocated to Native American reservations, at 28%. Arizona has five of the twelve largest Indian reservations in the United States, including the largest, the Navajo Nation, and the third-largest, the Tohono O'odham Nation. Al