This study aimed to estimate the percentage of child RTCs utilizing seclusion and restraint (S/R) practices and examine predictors associated with increased likelihood of S/R use between 2010 and 2020. A secondary analysis of the National Mental Health Services Survey was conducted (n-range = 580-781). Facility-level client demographics and facility characteristics were examined using multi-level logistic regression. One-way ANOVA indicated that the percentage of child RTCs using S/R significantly decreased between 2010 and 2020 [F(4, 58074) = 75.62, p <.001]. A post-hoc Bonferroni test found that the percentage of facilities reporting the use of SR in 2010 was significantly higher than in 2014, 2016, 2018, and 2020 (all p <.001). Multi-level logistic regression analysis found that facility-level client demographics (percent male, white, and involuntarily committed) did not significantly predict facility use of SR in 2010, 2014, or 2016. However, facility-level characteristics of SED program (all p <.01), use of psychotropic medication (all p <.001), and facility size as measured by number of mental health beds (all p <.01) consistently predicted usage of SR in 2010 [F(11) = 68.38, p <.001], 2014 [F(12) = 74.25, p <.001], and 2016 [F(12) = 74.48, p <.001]. Facility ownership and accepting Medicare payments did not significantly predict facility usage of SR. Use of SR within child RTCs significantly declined between 2010 and 2020. Larger facilities, facilities with an SED program, and facilities that used psychotropic medications with clients were more likely to use SR practices between 2010 and 2016. More high-quality, publicly available data for monitoring S/R use in mental health services within the United States is needed.