Phoenix is the capital and largest city in the U.S. state of Arizona, as well as the fifth most populous city in the United States. Phoenix is home to 1,552,259 residents, and is the anchor of the Phoenix Metropolitan Area with 4,179,427 residents. It is currently the largest city in the Southwestern region of the U.S (also known as the "Desert Southwest") and the Mountain West. In addition, Phoenix is the county seat of Maricopa County, and is one of the largest cities in the United States by land area. By population, it is the largest state capital in the United States.

Phoenix was incorporated as a city in 1881 after being founded in 1868 near the Salt River, near its confluence with the Gila River. The city eventually became a major transportation hub in North America and a main transportation, financial, industrial, cultural and economic center of the Southwestern United States. The city has a notable and famous political culture. While it has historically been a stronghold for the Republican Party, in recent years, the metropolitan area as a whole and even more clearly, the city itself, have been shifting slowly toward the left. Phoenix has been home to numerous influential politicians, including Barry Goldwater, William Rehnquist, John McCain, Janet Napolitano, Carl Hayden, and Sandra Day O'Connor. Residents of the city are known as Phoenicians.

Located in the northeastern reaches of the Sonoran Desert, Phoenix has the most extreme climate of any major city in the United States. The average high temperatures are over 100 °F (38 °C) for almost five months out of the year, and have spiked over 120 °F (49 °C) on occasion.

The city of Phoenix is divided up into 15 urban villages. Inside some of the Villages are well-known neighborhoods, or districts, which are listed as subpoints. These urban villages are: Ahwatukee Foothills, Alhambra, Camelback East, Central City, Deer Valley, Desert View, Encanto, Estrella, Laveen, Maryvale, North Gateway, North Mountain, Paradise Valley (not to be confused with the town of Paradise Valley), South Mountain and Rio Vista. Rio Vista was created as New Village in 2004 and is currently very sparsely populated, with no large amount of development expected in the near future.

Commonly referred-to Phoenix regions and districts include Downtown, Midtown, West Phoenix, North Phoenix, South Phoenix, Biltmore Area, Arcadia, Sunnyslope, Ahwatukee.

Museums

Several museums are scattered around the valley including the Phoenix Art Museum. One of the most well-known museums in the area is the Heard Museum just north of downtown. It has over 130,000 square feet (12,000 m²) of gallery, classroom and performance space. Some of the signature exhibits include a full Navajo hogan, the Mareen Allen Nichols Collection containing 260 pieces of contemporary jewelry, the Barry Goldwater Collection of 437 historic Hopi kachina dolls, and an exhibit on the 19th century boarding school experiences of Native Americans. The Heard Museum attracts about 250,000 visitors a year.

Other notable museums in the city include the Arizona Science Center, Hall of Flame Firefighting Museum, Phoenix Museum of History, the Phoenix Zoo, and the Pueblo Grande Museum and Cultural Park.

Phoenix is home to a large number of parks and recreation areas. Many waterparks are scattered around the valley to help residents cope with the harsh desert heat during the summer months. Some of the notable parks include Big Surf in Tempe, Waterworld Safari in Glendale, Golfland SunSplash in Mesa, and the Oasis Water Park at the Arizona Grand Resort - formerly known as Pointe South Mountain Resort - in Phoenix. The area also has one amusement park in north Phoenix called Castles N' Coasters, next to the Metrocenter Mall.

Many parks have been established to preserve the desert landscape in areas that would otherwise quickly be developed with commercial and residential zoning. The most noteworthy park is South Mountain Park, the world's largest municipal park with 16,500 acres (67 km2); others include Camelback Mountain, Boyce Thompson Arboretum State Park and Sunnyslope Mountain, also known as "S" Mountain. The Desert Botanical Garden displays desert plantlife from deserts all over the world. Encanto Park is the city's largest and primary urban park, and lies just northwest of downtown Phoenix. Papago Park in east Phoenix is home to both the Desert Botanical Garden and the Phoenix Zoo, as well as a few golf courses.