Arizona is a landlocked state situated in the southwestern region of the United States of America. Arizona shares land borders with Utah to the north, the Mexican state of Sonora the south, New Mexico to the east, and Nevada to the west. Arizona shares water borders with California and the Mexican state of Baja California to the west along the Colorado River. Arizona is also one of the Four Corners states, at which Arizona touches Colorado.
Arizona has an area of 113,998 square miles (295,253 km2), making it the sixth largest U.S. state. Of Arizona's total area, 0.32% consists of water, which makes Arizona the state with the second lowest percentage of water area (New Mexico is the lowest at 0.19%).
The United States is a country in the Northern Hemisphere, Western Hemisphere, and the Eastern Hemisphere. It consists of forty-eight contiguous states in North America, Alaska, a peninsula which forms the northwestern most part of North America, and Hawaii, an archipelago in the Pacific Ocean. There are several United States territories in the Pacific and Caribbean. The term "United States", when used in the geographical sense, means the continental United States, Alaska, Hawaii, Puerto Rico, Guam, and the Virgin Islands of the United States. The country shares land borders with Canada and Mexico and maritime (water) borders with Russia, Cuba, and the Bahamas in addition to Canada and Mexico.
The Phoenix Metropolitan Area – often referred to as the Valley of the Sun, the Salt River Valley or Metro Phoenix – is a metropolitan area, centered on the city of Phoenix, that includes much of the central part of the U.S. State of Arizona. The United States Census Bureau designates the area as the Phoenix-Mesa-Glendale Metropolitan Statistical Area (MSA), defining it as Maricopa and Pinal counties.
The population of the Phoenix Metropolitan Area increased by 45.3% from 1990 through 2000, compared to the average United States rate of 13.2%, helping to make Arizona the second fastest growing state in the nation in the 1990s (the fastest was Nevada). The 2000 Census reported the population of the metropolitan area to be 3,251,876.
Phoenix (// FEE-niks; O'odham: S-ki:kigk; Yavapai: Wathinka or Wakatehe; Western Apache: Fiinigis; Navajo: Hoozdoh; Mojave: Hachpa 'Anya Nyava) is the capital, and largest city, of the U.S. state of Arizona, as well as the sixth most populous city nationally, 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.
The following outline is provided as an overview of and topical guide to the U.S. state of Arizona:
Arizona – sixth most extensive of the 50 states of the United States of America. Arizona is located in the Southwestern United States and it is noted for its desert climate, exceptionally hot summers, and mild winters, but the high country in the north features pine forests and mountain ranges with cooler and wetter weather than the lower deserts. On February 24, 1863, the United States created the Territory of Arizona. Arizona joined the Union as the 48th state on February 14, 1912.
The United States of America (USA), commonly referred to as the United States (US), America, or simply the States, is a federal republic consisting of 50 states, 16 territories, a federal district, and various overseas extraterritorial jurisdictions. The 48 contiguous states and the federal district of Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The country also has five populated and nine unpopulated territories in the Pacific and the Caribbean. At 3.79 million square miles (9.83 million km2) in total and with around 316 million people, the United States is the fourth-largest country by total area and third largest by population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States is also extremely diverse, and it is home to a wide variety of wildlife.
Paleo-indians migrated from Asia to what is now the US mainland around 15,000 years ago, with European colonization beginning in the 16th century. The United States emerged from 13 British colonies located along the Atlantic seaboard. Disputes between Great Britain and these colonies led to the American Revolution. On July 4, 1776, delegates from the 13 colonies unanimously issued the Declaration of Independence. The ensuing war ended in 1783 with the recognition of independence of the United States from the Kingdom of Great Britain, and was the first successful war of independence against a European colonial empire. The current Constitution was adopted on September 17, 1787. The first 10 amendments, collectively named the Bill of Rights, were ratified in 1791 and guarantee many fundamental civil rights and freedoms.