INTRODUCTION Davao del Norte ( Cebuano : Amihanang Dabaw ) is a province in the Philippines located in the Davao Region in Mindanao . Its capital is Tagum City . Davao del Norte also includes Samal Island to the south in the Davao Gulf . Before 1967, the five provinces—Davao del Norte, Davao Oriental , Davao del Sur , Davao Occidental and Compostela Valley —were administered as a single province named Davao . The Davao Region is coterminous with this former province. History Davao del Norte and Compostela Valley , together with Davao Oriental , Davao Occidental and Davao del Sur used to be a whole province simply known as Davao . This original province was split into three: Davao del Norte, Davao Oriental , and Davao del Sur when Republic Act No. 4867 (authored by Represe...