The Catholic presence in the Texas Panhandle dates back to 1541, when Spanish explorer Francisco Vásquez de Coronado traversed the region in search of the mythical Seven Cities of Gold. Accompanying him was Father Juan de Padilla, a Franciscan friar who celebrated Mass near present-day Palo Duro Canyon on the Feast of the Ascension. Father Padilla is recognized as the first Christian martyr on what is now U.S. soil, having been killed in 1544 while evangelizing Native peoples in present-day Kansas.
Over the centuries, the region fell under various ecclesiastical jurisdictions, including the dioceses of Guadalajara and Linares in Mexico, and later New Orleans, Galveston, and Dallas in the United States. The Diocese of Amarillo was officially established by Pope Pius XI on August 3, 1926, carved from territories of the Dallas and San Antonio dioceses.
Reverend Rudolph Gerken was appointed as its first bishop and was installed at Sacred Heart Church in Amarillo on April 27, 1927. Under his leadership, the diocese saw the construction of numerous churches and the founding of Price Memorial College.
The diocese has undergone significant territorial changes, notably in 1961 with the creation of the Diocese of San Angelo and in 1983 with the establishment of the Diocese of Lubbock, both of which involved the reassignment of counties from the Amarillo diocese.
Today, the Diocese of Amarillo encompasses 26 counties over approximately 25,800 square miles, serving a diverse Catholic population through 38 parishes.
St. Mary's Cathedral in Amarillo serves as the diocesan cathedral, with St. Mary honored as the patroness of the diocese.
The diocese continues its mission to evangelize and serve the faithful in the Texas Panhandle.