Shield: From the Provincial Seal of Cagayan where the town is located.

The Stars: Twenty five (25) Stars: Number of Barangays comprising the Municipality. Two (2) Stars separating the name of Municipality and the Province: Beacons as guiding lights of the town's leaders and government officials.

Tobacco: Main product of the Municipality.

Rice & Corn: Secondary products of the Municipality.

Wooden Plow: Farm implement most commonly used by majority of farmers in the town and depicting Alcala as an agricultural community. It also shows humility, perseverance and industriousness of the townspeople.