This Data Snapshot shows that the number of youth in residential placement facilities fell below 25,000 in 2021. Relative declines from 1999 to 2021 were greater for committed youth (83%) than detained youth (62%). The proportion of detained and committed youth held for a person offense increased between 1997 and 2021. Detention rates decreased the most for Asian (71%) and Hispanic (69%) youth between 2010 and 2021. Commitment rates decreased by at least 69% for youth of all race/ethnicity groups between 2010 and 2021. Among detained youth, youth of color had been in placement longer than white youth. Among committed youth, Asian youth had been in placement longer than youth from all other race/ethnicity groups.