Park National Corporation is a bank holding company that is engaged in a general commercial banking and trust business in small and medium populations in Ohio communities through its subsidiaries. The Company's subsidiaries are The Park National Bank, a national banking association; The Richland Trust Company, an Ohio state-chartered bank; Century National Bank, a national banking association; The First-Knox National Bank of Mount Vernon, a national banking association; United Bank, N.A., a national banking association; Second National Bank, a national banking association; The Security National Bank and Trust Co., a national banking association, and The Citizens National Bank of Urbana, a national banking association.