Quirino is a province in the Philippines situated in the Cagayan Valley region occupying the northeastern section of Luzon. Its capital is the Municipality of Cabarroguis.

The province has a land area of 2,319.66 square kilometers or 895.63 square miles. Its population as determined by the 2020 Census was 203,828. This represented 5.53% of the total population of the Cagayan Valley region, 0.33% of the overall population of the Luzon island group, or 0.19% of the entire population of the Philippines. Based on these figures, the population density is computed at 88 inhabitants per square kilometer or 228 inhabitants per square mile.

-https://www.philatlas.com/luzon/r02/quirino.html