Since its beginning, Security State Bank has been in the business of serving the people and communities of south central North Dakota. Security State Bank, founded in Wishek, ND in 1909, is the oldest bank in McIntosh County. There are offices in Wishek, ND, Linton, ND and Lehr, ND. Security State Bank is locally owned, and the management and staff are actively involved in the communities where they live and work.