Oklahoma City metropolitan area in the context of "Cleveland County, Oklahoma"

Oklahoma City (/ˌoʊkləˈhoʊmə -/ OH-klə-HOH-mə -⁠), often shortened to OKC, is the capital and most populous city of the U.S. state of Oklahoma. It is the 20th-most populous U.S. city and 8th largest in the Southern United States, with a population of 681,054 at the 2020 census. The Oklahoma City metropolitan area, with an estimated 1.49 million residents, is the largest metropolitan area in the state and 42nd-most populous in the country. It is the county seat of Oklahoma County, with the city limits extending into Canadian, Cleveland, and Pottawatomie counties; however, areas beyond Oklahoma County primarily consist of suburban developments or areas designated rural and watershed zones. Oklahoma City ranks as the tenth-largest city by area in the United States when including consolidated city-counties, and second-largest when such consolidations are excluded. It is also the second-largest state capital by area, after Juneau, Alaska.

Oklahoma City has one of the world's largest livestock markets. Oil, natural gas, petroleum products, and related industries are its economy's largest sector. The city is in the middle of an active oil field, and oil derricks dot the capitol grounds. The federal government employs a large number of workers at Tinker Air Force Base and the United States Department of Transportation's Mike Monroney Aeronautical Center (which house offices of the Federal Aviation Administration and the Transportation Department's Enterprise Service Center, respectively).

Oklahoma County is a county located in the central part of the U.S. state of Oklahoma. As of the 2020 census, the population was 796,292, making it the most populous county in Oklahoma. The county seat is Oklahoma City, the state capital and largest city. Oklahoma County is at the heart of the Oklahoma City metropolitan statistical area. Oklahoma County is one of seven counties in the United States to share the same name as the state it is located in (the other six being Arkansas County, Hawaii County, Idaho County, Iowa County, New York County (Manhattan), and Utah County), and the only one of the seven to contain the state capital, and one of two to contain a city of the same name as well.

Pottawatomie County is a county located in the U.S. state of Oklahoma. As of the 2020 census, the population was 72,454. Its county seat is Shawnee.

Pottawatomie County is part of the Shawnee, OK micropolitan statistical area, which is Pottawatomie County, Oklahoma Government in the Oklahoma City–Shawnee, OK combined statistical area.

Mike Monroney Aeronautical Center is a regional office of the United States Federal Aviation Administration (FAA) on the grounds of Will Rogers Airport in Oklahoma City. With around 7,500 direct federal employees, the Aeronautical Center is one of the Department of Transportation's largest facilities outside the Washington, DC area, and one of the 10 largest employers in the Oklahoma City metropolitan area. It is named for Senator Mike Monroney of Oklahoma, who wrote and sponsored the Federal Aviation Act of 1958.

The term Cross Timbers, also known as Ecoregion 29, Central Oklahoma/Texas Plains, is used to describe a strip of land in the United States that runs from southeastern Kansas across Central Oklahoma to Central Texas. Made up of a mix of prairie, savanna, and woodland, it forms part of the boundary between the more heavily forested eastern country and the almost treeless Great Plains, and also marks the western habitat limit of many mammals and insects.

No major metropolitan areas lie wholly within the Cross Timbers, although roughly the western half of the Dallas-Fort Worth Metroplex does, including the cities of Fort Worth, Denton, Arlington, and Weatherford. The western suburbs of the Tulsa metropolitan area and the northeastern suburbs of the Oklahoma City metropolitan area also lie within this area. The main highways that cross the region are I-35 and I-35W going north to south (although they tend to skirt the Cross Timbers' eastern fringe south of Fort Worth), and both I-40 and I-44 going east to west. Numerous U.S. Highways also cross the area. I-35 means a portion of Austin and Travis County is also included in the Cross Timbers.