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Arizona
State of Arizona
Location of Arizona in the United States
Location of Arizona in the United States
Websiteaz.gov

Arizona is a landlocked state in the Southwestern United States, sharing the Four Corners region with Colorado, New Mexico, and Utah. It also borders Nevada to the northwest and California to the west, and shares an international border with the Mexican states of Sonora and Baja California to the south and southwest. Its capital and largest city is Phoenix, which is the most populous state capital and fifth-most populous city in the United States. Arizona is divided into 15 counties.

Arizona is the sixth-largest state by area and the 14th-most-populous of the 50 states. It is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912. Historically part of the territory of Alta California and Nuevo México in New Spain (Spanish Empire), it became part of independent Mexico in 1821. After being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848, where the area became part of the New Mexico Territory. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase.

Southern Arizona is known for its desert climate, with extremely hot summers and mild winters. Northern Arizona features forests of pine, Douglas fir, and spruce trees; the Colorado Plateau; mountain ranges (such as the San Francisco Mountains); as well as large, deep canyons, with much more moderate summer temperatures and significant winter snowfalls. There are ski resorts in the areas of Flagstaff, Sunrise, and Tucson. In addition to the internationally known Grand Canyon National Park, which is one of the world's seven natural wonders, there are several national forests, national parks, and national monuments.

Arizona is home to a diverse population. About one-quarter of the state is made up of Indian reservations that serve as the home of 27 federally recognized Native American tribes, including the Navajo Nation, the largest in the state and the country, with more than 300,000 citizens. Since the 1980s, the proportion of Hispanics has grown significantly owing to migration from Mexico and Central America. A substantial portion of the population are followers of the Roman Catholic Church and the Church of Jesus Christ of Latter-day Saints. Arizona's population and economy have grown dramatically since the 1950s because of inward migration, and the state is now a major hub of the Sun Belt. Many large companies, such as PetSmart and Circle K, have headquarters in the state, and Arizona is home to major universities, including the University of Arizona, Arizona State University, and Northern Arizona University. (Full article...)

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The 2020 United States presidential election in Arizona was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election, in which all 50 states and the District of Columbia participated. Arizona voters chose 11 electors to represent them in the Electoral College via a popular vote pitting incumbent Republican President Donald Trump of Florida and his running mate, incumbent Vice President Mike Pence of Indiana, against Democratic challenger and former Vice President Joe Biden of Delaware and his running mate, United States Senator Kamala Harris of California. The Libertarian nominees were also on the ballot. This is the closest presidential election in Arizona history, surpassing the previous closest of 1964, in which Barry Goldwater won the state by just under a single percentage point.

Trump carried Arizona in 2016 by 3.5%, and it was considered a vital battleground in this election. The state's bitterly competitive nature was attributed to the rapid growth of Maricopa County, a traditionally Republican stronghold that holds 61.6% of the state's population. Biden became the first Democrat to win Arizona since Bill Clinton in 1996, and only the second since Harry S. Truman in 1948. He is also the first Democrat to win Maricopa County since Truman, with a margin of 2.2%, or 45,109 votes. High turnout among Hispanic/Latino and Native American voters was also seen as vital. Polls of the state throughout the campaign generally showed a Biden lead, albeit by a slender margin. Prior to election day, 11 of the 16 news organizations considered that Arizona was leaning towards Biden; the other five considered it a toss-up. Arizona was the second-closest state in 2020, the only closer state being Georgia, marking the first time since 1948 that the Democratic nominee won both Sun Belt states in the same presidential election (Clinton won each state in separate elections). This was also the first time since 1932 that a non-incumbent Democrat carried Arizona in a presidential election, or that an incumbent Republican lost the state. Arizona weighed in as 4.15 percentage points more Republican than the nation in 2020. Arizona is also one of only two states that backed Biden that didn't back Barack Obama in either of his runs for president in 2008 and 2012, the other being Georgia. (Full article...)

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Antelope Canyon
Antelope Canyon
Credit: Luca Galuzzi

An HDR image of Upper Antelope Canyon, Page, Arizona. Antelope Canyon is the most-visited and most-photographed slot canyon in the Southwestern United States. It was formed by erosion of Navajo Sandstone, primarily due to flash flooding and secondarily due to other sub-aerial processes. Photography within the canyons is difficult due to the wide exposure range (often 10 EV or more) made by light reflecting off the canyon walls.

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Did you know?
  • ...that Arizona SB1070, the state's new immigration enforcement law, has attracted national attention as the broadest and strictest anti-illegal immigration measure in decades within the United States?

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You are invited to participate in WikiProject Arizona, a WikiProject dedicated to developing and improving articles about Arizona.
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Stone in 2025

Emily Jean "Emma" Stone (born November 6, 1988) is an American actress and film producer. Her accolades include two Academy Awards, two BAFTA Awards, two Golden Globe Awards and a Volpi Cup as well as a nomination for a Primetime Emmy Award. In 2017, she was the world's highest-paid actress and named by Time magazine as one of the 100 most influential people in the world.

As a child in Arizona, Stone started acting in local theater productions before relocating to Los Angeles to pursue a career in the film industry. As a teenager, she made her television debut in the reality show In Search of the New Partridge Family (2004). After small television roles, she appeared in a string of successful comedy films, such as Superbad (2007), Zombieland (2009), and Easy A (2010), which became Stone's first leading role. Following this breakthrough, she starred in the romantic comedy Crazy, Stupid, Love (2011) and the period drama The Help (2011), and gained wider recognition as Gwen Stacy in Marc Webb's Spider-Man films (2012–2014). (Full article...)

The following are images from various Arizona-related articles on Wikipedia.

Arizona news

June 4, 2026 – Attempts to overturn the 2020 United States presidential election
The office of Arizona attorney general Kris Mayes says that it will seek new indictments against fake electors involved in attempting to overturn the 2020 U.S. presidential election in the state following a denial of an appeal by Mayes that would require prosecutors to send the case back to the grand jury. (AP via The Guardian) (The Hill)
June 3, 2026 –
The U.S. state of Arizona reports its first death of the Sin Nombre strain of hantavirus pulmonary syndrome. (Forbes)

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