St. Agatha
Boston, Massachusetts
Last updated May 2026

~5,821
estimated members
Based on ARDA 2020 data, this is likely one of 51 Catholic congregations in Norfolk County, MA, with an average size of approximately 5,821 members. Catholic accounts for 77% of the county's 370 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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