The bank resulted from the merger of the Caja de Ahorros y Monte de Piedad Municipal de Pamplona (founded by the Pamplona city council in 1872) and the Caja de Ahorros de Navarra (founded by the Provincial Government of Navarre in 1921) on January 17, 2000.
On accession of Miguel Sanz to regional office in Navarre (1996), the merger of both traditional savings banks took place to form Caja Navarra.