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