 About 7.8% of families and 10.9% of the population were below the poverty line, including 14.9% of those under age 18 and 7.2% of those age 65 or over.Clark County is religiously diverse, with no single group comprising 10% of the population.The four groups that exceed 1% are nondenominational Christian with 30,026 members, the Catholic Church with 26,886 members, Mormonism with 20,793 members, and the Evangelical Lutheran Church of America with 4,827.