 About 30.1% of families and 34.4% of the population were below the poverty line, including 49.6% of those under age 18 and 28.9% of those age 65 or over.On Calhoun County's side of the Calhoun County School District unit, Calhoun County Elementary School (grades K-5) serves Calhoun County, including some students from Arlington, Edison, Leary, and Morgan.Calhoun County Middle/High is in Edison.