 About 10.0% of families and 14.5% of the population were below the poverty line, including 17.6% of those under age 18 and 9.7% of those age 65 or over.Richland County is governed by a County Council, who hold concurrent four-year terms.Richland County is governed under the Council-Administrator form of government, which is very similar to the Council-Manager form of government.