Community Profile 2018 - Washington County Substance Use and Mental Health Indicators - Washington County substancetreatment-washington.pdf Division of Behavioral Health: Mental Illness Treatment Services - Washington County Missouri Student Survey - Washington County population-washington.pdf County Health Ranking http://www.countyhealthrankings.org/app/missouri/2019/rankings/washington/count… QuickFacts: U.S. Census Bureau https://www.census.gov/quickfacts/fact/table/washingtoncountymissouri/PST045218 Prevention Needs Assessment Profile for Washington County Date 2018