The Cathedral of Saint Mary of the Immaculate Conception

Peoria, Illinois

The Cathedral of Saint Mary of the Immaculate Conception is located in Peoria, Illinois, and serves as part of the Heart of Peoria Catholic Community. The community operates three churches across the historic neighborhoods of Peoria: the Cathedral of St. Mary, Sacred Heart, and St. Joseph. The cathedral is notable for housing the tomb of Venerable Servant of God Fulton J. Sheen in a side chapel, with visitor hours available. The parish is involved in community outreach through Sophia's Kitchen, an initiative that provides meals to hundreds of people daily. The community welcomes those new to Peoria, individuals seeking a faith community, and those interested in learning about Jesus Christ. The parish office is located at 504 Fulton Street, Peoria, Illinois, and can be reached by phone. The community uses Flocknote for member communication regarding parish events, Lenten devotions, and parish missions.

Denomination

Catholic

Phone

+1 309-682-5823

Last updated August 2026

Map showing location of The Cathedral of Saint Mary of the Immaculate Conception

1,000-5,000

estimated members

This is likely one of 18 Catholic congregations in Peoria County, IL. Catholic accounts for 30% of the county's 240 congregations.

This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.

Nearby churches in Peoria

Explore more