The Cathedral of St. Mary


Parish & School Groups

Cathedral Tour
Museum Visit
Catered Lunch
Gift Shop

Contact the Museums of the Diocese of Peoria
for scheduling details

Welcome to the Cathedral of St. Mary of the Immaculate Conception, the mother church of the Diocese of Peoria. Since its completion in 1889, the Cathedral of St. Mary has been a feature of the skyline of the city of Peoria and the heart of the Diocese of Peoria. The Cathedral is first and foremost a place of encounter with God.

The Cathedral in its representative capacity stands for the whole diocese. It is, in a way, the people's church. Certain official functions take place normally only in the Cathedral: a diocesan synod, the consecration of holy oils on Maundy Thursday and the other Pontifical functions of Holy Week, the consecration of a Bishop, ordination of priests, the Pontifical High Mass on Pentecost, Christmas, and Easter, and other occasional solemn functions. The Cathedral is the visible expression of spiritual and organic diocesan life.

Thursday, August 25, 2016 marked the 100th anniversary of the death of Archbishop John Lancaster Spalding, founding bishop of the Roman Catholic Diocese of Peoria. This anniversary also marks the restoration of the historic Cathedral of Saint Mary of the Immaculate Conception that began several years ago with exterior repair and is now completed with a magnificent restoration of the interior.

You are encouraged to visit the Cathedral of St. Mary of the Immaculate Conception for guided tours and quiet prayer by contacting the Museums of the Diocese.

Through the beauty, art, and history offered throughout the cathedral, and guided by the Holy Spirit, let it be your prayer to walk away with a deeper appreciation of the Catholic faith.

Click on the above image to download a Self Guided Tour of the newly renovated Cathederal of the Diocese of Peoria.


Music at the Cathedral

Parish Website

St. Mary of the
Immaculate Conception


Historical Timeline
SPALDING PASTORAL CENTER | 419 NE MADISON AVENUE | PEORIA, IL 61603 | PHONE (309) 671-1550 | FAX (309) 671-1579
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