St. Isidore the Farmer Parish Church of Tubao (canonically erected in 1896), 2509 La Union, celebrates its fiesta every May 15. It is under the jurisdiction of the Roman Catholic Diocese of San Fernando de La Union (Dioecesis Ferdinandopolitana ab Unione, Suffragan of Lingayen – Dagupan, which was created on January 19, 1970 and erected on April 11, 1970, comprising the Civil Province of La Union, under the Titular, St. William the Hermit, February 10). The Church is underf a diocese of the Latin Rite of the Roman Catholic Church in the Philippines from the Archdiocese of Nueva Segovia.
The Tubao Church is under the Vicariate of St. Francis Xavier with Vicar Forane, Fr. Jan Errol S. Mantes.