 As of 2019, the population of Renton is estimated at 101,751, up from 90,927 at the 2010 census.Renton is currently the eighth-largest city in Washington and the fourth-largest in King County.Since 2008, the National Football League's Seattle Seahawks have had a training facility in Renton, the Virginia Mason Athletic Center (VMAC), which is the second-largest facility in the NFL at .