Oklahoma Cityis the capital and largest city of the state ofOklahoma. Thecounty seatofOklahoma County,the city ranks27thamong United States cities in population. The city also ranks as theeighth-largest city in the United States by land area(includingconsolidated city-counties; it is the largest city in the United States by land area whose government is not consolidated with that of a county or borough).
Lying in theGreat Plainsregion, the city features one of the largest livestock markets in the world.Oil, natural gas,petroleum productsand related industries are the largest sector of the local economy. The city is situated in the middle of an active oil field andoil derricksdot the capitol grounds.
Oklahoma City is on theI-35 Corridorand is one of the primary travel corridors into neighboringTexasandMexico. Located in theFrontier Countryregion of the state, the city's northeast section lies in an ecological region known as theCross Timbers. The city was founded during theLand Run of 1889, and grew to a population of over 10,000 within hours of its founding.