St Mary's Chapel
New Orleans, Louisiana
Last updated June 2026

~2,392
estimated members
Based on ARDA 2020 data, this is likely one of 45 Catholic congregations in Orleans Parish, LA, with an average size of approximately 2,392 members. Catholic accounts for 50% of the county's 431 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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