Phoenix is the capital, and largest city, of the U.S. state of Arizona, as well as the sixth most populous city in the United States of America, and is also the most populous state capital in the United States. Phoenix is home to 1,445,632 people according to the 2010 U.S. Census Bureau data. It is the anchor of the Phoenix metropolitan area (also known as the Valley of the Sun), and is the 12th largest metro area by population in the United States with about 4.2 million people in 2010. In addition, Phoenix is the county seat of Maricopa County, and is one of the largest cities in the United States by land area. Phoenix was incorporated as a city in 1881, after being founded in 1861 near the Salt River, close to the confluence with the Gila River.
Contributions by Bravo1, AntonioMartin, and Blair P. Houghton.