St Martin de Porres Catholic Church, 615 Dunn Rd
St. Louis, Missouri
Last updated May 2026
~3,567
estimated members
Based on ARDA 2020 data, this is likely one of 72 Catholic congregations in St. Louis County, MO, with an average size of approximately 3,567 members. Catholic accounts for 50% of the county's 693 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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