Saint John's Cathedral
Denver, Colorado
Last updated May 2026

~4,329
estimated members
Based on ARDA 2020 data, this is likely one of 41 Catholic congregations in Denver County, CO, with an average size of approximately 4,329 members. Catholic accounts for 58% of the county's 496 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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