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

Rice Stalk & Tobacco Leaves: Main crops of the town. San Jacinto is also considered as one of the tobacco belts of Pangasinan.

Mountains: Mountainous area of the town and of the province as well.

Y-shaped Blue Color: Water resources that irrigates the farmlands.

1598: Year when town was founded by a Spanish Priest named Fr. Herminigildo Melgar.