Apayao is located at the northernmost tip of the Luzon mainland. It is bounded on the east by the province of Cagayan, on the west by Ilocos Norte and Abra, and on the south by Kalinga.
Apayao was formerly a part of the old province of Kalinga-Apayao. However, on February 14, 1995, Republic Act No. 7878 authored by Congressman Elias K. Bulut of the lone district of Kalinga-Apayao, was passed converting the province of Kalinga-Apayao into two separate and regular provinces: Kalinga and Apayao.
The province is almost equally mountainous/hilly (Upper Apayao) and flat (Lower Apayao) with intermittent patches of valleys and plateaus. The municipalities of Calanasan, Conner and Kabugao are in Upper Apayao while the municipalities of Flora, Luna, Pudtol and Sta. Marcela are located in Lower Apayao. The prevailing climate in the province falls under Corona's Type III Classification. It is characterized by not very pronounced dry and wet seasons, relatively dry from November to April and wet during the rest of the year. Heaviest rain occurs during December to February while the month of May is the warmest.
With the province's beautiful and untapped resources, Apayao boasts of a lot of natural as well as man-made places of interests. Among them are the following: Porag, Banna-ang and Banselan Caves and Porag Falls in Conner; Dacao Dam in Flora; Madarang Memorial Shrine in Kabugao; Mt. Ziniladdun in Luna; the old Spanish Church, the Pudtol Dam and the Nagan River in Pudtol; and the Sta. Marcela Dam.
The Province of Apayao is composed of Seven (7) Municipalities, namely:
Calanasan, Conner, Flora, Kabugao, Luna, Pudtol and Sta. Marcela.
* - 2010 NSO Census of Population
** - 2010 Partial Data from COMELEC