Padre Herminigildo Milgar founded the town on August 17, 1598, which was named after Hyacinth of Poland, canonized on April 17, 1594, by Pope Clement VIII.

Oppeln), Upper Silesia – d. 15 August 1257) was a Doctor of Sacred Studies and a secular priest, he worked to reform women's monasteries in his native Poland.

Poverty incidence of San Jacinto Source: Philippine Statistics Authority[20][21][22][23][24][25][26][27] The main source of livelihood of the residents include agriculture, construction, poultry, dressing plant, cornhusk weaving, sand and gravel crushing plant and bag-and basket-making.

4th District Rep. Gina de Venecia initiated the Bayong and Corn–Husk Development Project fashioning these waste products into luxurious bags & baskets, and moccasins.

From Manila, you can reach San Jacinto, Pangasinan in 2 hours and 36 minutes without traffic via North Luzon Expressway in the distance of 204 km.

The town Memorandum of Agreement (MOA) granted resident trainings on Basic Bayong Weaving; Dyeing Raw Materials, Skills Upgrading, and Intensive Product Design & Innovations.