The US state of Oklahoma is situated in the South Central part of the United States. Based on the 2010 census, the state of Oklahoma has a projected 3,751,351 people, with a land area totaling 177,847 km2 or 68,667 square miles. The state of Oklahoma ranks as the 20th most densely inhabited state. The state's name is derived from the Choctaw words okla and humma, that means "red people", and is known informally by its nickname, The Sooner State. Formed by the combination of Oklahoma Territory and Indian Territory on November 16, 1907, the state of Oklahoma was the 46th state to enter the union. Its residents are called Oklahomans or, informally, "Sooners" or "Okies", and its biggest and capital city is the city of Oklahoma.
A major producer of oil, agriculture and natural gas, the state of Oklahoma depends on an economic base of aviation, energy, telecommunications, and biotechnology. It has among the fastest growing economies in the United States, ranking amongst the top states in per capita income growth and gross domestic product growth. Oklahoma City and Tulsa serve as the primary economic anchors of the state of Oklahoma, with nearly 60 percent of Oklahomans living in their metropolitan statistical areas.
The majority of Oklahoma sits in the Great Plains, that is a region that is prone to severe weather. There are also small mountain ranges, prairies, and eastern forests, making up the topography of the state. There are more 25 Native American languages being spoken in Oklahoma, which is more than whichever other US state; in addition to the strong prevalence of German, Irish, Scottish, English residents. It is located on a confluence of three major American cultural areas and historically served as a destination for southern settlers, a route for cattle drives, and a government-sanctioned territory for Native Americans. Part of the Bible Belt, widespread belief in evangelical Christianity makes it among the most politically conservative states, even though the state of Oklahoma has more voters registered with the Democratic Party compared to whichever other party.
The economy of Oklahoma is based on the sectors of aviation, energy, transportation equipment, food processing, telecommunications and electronics. Oklahoma is a major producer of aircraft, food and natural gas. In natural gas production, the state of Oklahoma ranks second, while it ranks 27th in the production of agricultural products, even though it is the 5th largest producer of wheat in the United States. Four Fortune 500 companies and two Fortune 1000 companies are headquartered in Oklahoma, and it has been rated among the most business-friendly states in the country, with the 7th-lowest tax burden in 2007. During the year 2010, Oklahoma City-based Love's Travel Stops & Country Stores ranked 18th on the Forbe's list of biggest private companies, Tulsa-based QuikTrip ranked 37th, and Oklahoma City-based Hobby Lobby ranked 198th in 2010 report. From the years 2006 to 2010, Oklahoma's gross domestic product grew from $131.9 billion to $147.5 billion, a jump of 10.6 percent. Oklahoma's gross domestic product per capita was $35,480 during 2010, which was ranked 40th among the states. Though oil has historically dominated the state's economy, a collapse in the energy business in the 1980s led to the loss of just about 90,000 energy-related jobs between 1980 and 2000, severely damaging the local economy. Oil accounted for 17 percent of the state's economic impact in 2005, and employment within the state's oil industry was outpaced by five other industries during the year 2007.