Cathedral Basilica of the Immaculate Conception
Denver, Colorado
The Cathedral Basilica of the Immaculate Conception serves as the primary Catholic church in Aurora, Colorado. As a Catholic parish, it follows the traditions and teachings of the Roman Catholic Church, offering Mass according to the liturgical calendar and providing sacraments including Baptism, Confirmation, Eucharist, and Reconciliation. Visitors can expect a formal worship setting with traditional elements such as hymns, prayers, and readings from Scripture. The church welcomes both members of the Catholic faith and those interested in learning more about Catholic practice and spirituality. Catholic churches typically emphasize community service, religious education, and devotional practices. This basilica in Aurora serves the local Catholic community and provides opportunities for worship, spiritual formation, and fellowship among parishioners and visitors.
Last updated August 2026
1,000-5,000
estimated members
This is likely one of 41 Catholic congregations in Denver County, CO. Catholic accounts for 58% of the county's 496 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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