'''Crestwood''' is a city in south [[St. Louis County, Missouri|St. Louis County]], [[Missouri]], a suburb of [[St. Louis]]. It had a population of 11,912 at the 2010 census. | '''Crestwood''' is a city in south [[St. Louis County, Missouri|St. Louis County]], [[Missouri]], a suburb of [[St. Louis]]. It had a population of 11,912 at the 2010 census. |