. . . EXHIBIT 21 SUBSIDIARIES OF PARK NATIONAL CORPORATION NAME OF SUBSIDIARY JURISDICTION OF INCORPORATION OR FORMATION - ----------------------------------------------- ------------------------------------------ The Park National Bank ("PNB") United States (federally-chartered national banking association) Park Investments, Inc. (NOTE: is a wholly-owned Delaware subsidiary of PNB) Scope Leasing, Inc. (NOTE: is a wholly-owned Ohio subsidiary of PNB) Park Leasing Company (NOTE: is a wholly- Ohio owned subsidiary of PNB) Park Insurance Group, Inc. (NOTE: is a wholly- Ohio owned subsidiary of PNB) The Richland Trust Company ("Richland") Ohio Richland Investments, Inc. (NOTE: is a wholly- Delaware owned subsidiary of Richland) Century National Bank ("Century") United States (federally-chartered banking association) Zane-Fed Services, Incorporated (NOTE: is a Ohio wholly-owned subsidiary of Century) MFS Investments, Inc. (NOTE: is a wholly-owned Delaware subsidiary of Century) The First-Knox National Bank of Mount Vernon United States (federally-chartered ("FKNB") banking association) Guardian Financial Services Company Ohio United Bank, N.A. United States (federally-chartered banking association) Second National Bank United States (federally-chartered banking association) The Security National Bank and Trust Co. United States (federally-chartered ("Security National") banking association) The Citizens National Bank of Urbana United States (federally-chartered banking association) Park Capital Investments, Inc. ("Park Capital") Delaware Park National Capital LLC (NOTE: members are Delaware Park Capital and PNB) Security National Capital LLC (NOTE: members Delaware are Park Capital and Security National) First-Knox National Capital LLC (NOTE: members Delaware are Park Capital and FKNB)