The Bishop of Guadalajara, Francisco de San Buena Ventura, ordered the construction of a small mission chapel in 1760 which was the only place of worship until 1778.

In 1848 Bishop John M. Odin of the Diocese of Galveston assigned several French priests to this part of his territory.

San Agustin Church is a Gothic Revival structure with a five-story- 141 ft (43m) bell / clock tower.

All the windows have the traditional Gothic shape with stained glass located between structural bays of its masonry walls.

[3] In 2000 the Diocese of Laredo was established and the San Agustin Church was made its cathedral by order of Pope John Paul II.