Welcome to St. Gregory the Illuminator Armenian Apostolic Church, located in Granite City, Illinois. We are a parish of the Eastern Prelacy of the Armenian Apostolic Church of America (under the jurisdiction of the Catholicosate of the Great House of Cilicia), headquartered in New York City.  Our Prelate is His Eminence Archbishop Oshagan Choloyan, and we have many visting Der Hayrs on designated Sundays until a permanent Der Hayr is assigned to us.
Our forefathers established the Church in 1954, purchasing a former Bulgarian Church, which served as our spiritual home until 1997. In October 1997, His Holiness Catholicos Aram I of the Great House of Cilicica consecrated the current St. Gregory Church that is located at 1014 W. Pontoon Road in Granite City. Our parishioner and member base stretches across the entire Metro St. Louis area and we welcome all to worship with us. Adjacent to the Church is St. Gregory Armenian Community Center which sits on 5 acres and was opened in 1986.

Our Community Center is one of the nicest banquet halls in the area and we take pride in that fact.

We invite you to worship with us on Sundays, or join us for community events.

Please contact the Church office at (618) 451-7884 with any questions or information you require. The Community Center number is (618) 452-1915.




1014 W. Pontoon Road
Granite City, Illinois  62025