The area seat of Oklahoma County,the city positions 27th among United States urban areas in populace. The populace developed after the 2010 Census, with the populace evaluated to have expanded to 631,346 starting at July 2015. The Oklahoma City-Shawnee Combined Statistical Area had a populace of 1,459,758 Chamber of Commerce residents,making it Oklahoma's biggest metropolitan area.Oklahoma's city limits reach out into Canadian, Cleveland, and Pottawatomie regions, however a lot of those territories outside the center Oklahoma County territory are rural or provincial watershed. The city positions as the eighth-biggest city in the United States via arrive region counting merged city-districts; it is the biggest city in the United States via arrive territory after Houston, whose administration is comparably not solidified with that of an area or precinct.