. . . EXHIBIT 21 SUBSIDIARIES OF PARK NATIONAL CORPORATION Name of Subsidiary Jurisdiction of Incorporation - ------------------ ----------------------------- 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 subsidiary Ohio of PNB) Park Leasing Company (NOTE: is a wholly-owned Ohio subsidiary of PNB) Park Insurance Group, Inc. (NOTE: is a wholly-owned Ohio subsidiary of PNB) The Richland Trust Company ("Richland") Ohio Richland Investments, Inc. (NOTE: is a wholly-owned Delaware 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 ("FKNB") United States (federally-chartered 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. ("Security United States (federally-chartered banking association) National") 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 Park Delaware Capital and PNB) Security National Capital LLC (NOTE: members are Park Delaware Capital and Security National) First-Knox National Capital LLC (NOTE: members are Park Delaware Capital and FKNB)