Champlain Bank Corporation is the holding company parent of Champlain National Bank. The Bank itself was formed in 1959 as the result of the merger between Lake Champlain National Bank in Westport and Essex County National Bank in Willsboro.
Lake Champlain National Bank dates from 1909, and Essex County National Bank commenced business in 1923. Additional offices of the combined bank were opened in Elizabethtown in 1961, Crown Point in 1973, Keene in 1987, Plattsburgh in 1992 and 1999, Champlain in 1996, and Lake Placid in 2006. Thus, the present bank has a long history of service to the people of Essex and Clinton Counties.
In 1986 the Bank became a wholly owned subsidiary of Champlain Bank Corporation, which is owned by the former shareholders of the Bank. Most of the shareholders have close ties to the Bank's service area, and the Bank thus remains the only independent, community owned financial institution in its service area.