Apayao is a province in the Philippines situated in the Cordillera Administrative Region occupying the northern-central section of Luzon. Its capital is the Municipality of Kabugao.

The province has a land area of 4,502.33 square kilometers or 1,738.36 square miles. Its population as determined by the 2020 Census was 124,366. This represented 6.92% of the total population of the Cordillera Administrative Region, 0.20% of the overall population of the Luzon island group, or 0.11% of the entire population of the Philippines. Based on these figures, the population density is computed at 28 inhabitants per square kilometer or 72 inhabitants per square mile.

-https://www.philatlas.com/luzon/car/apayao.html