Cathedral Basillica of Saint Augustine
Jacksonville, Florida
Last updated June 2026

~3,549
estimated members
Based on ARDA 2020 data, this is likely one of 10 Catholic congregations in St. Johns County, FL, with an average size of approximately 3,549 members. Catholic accounts for 36% of the county's 163 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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