St. Mary’s Church
Michigan City, Indiana
DenominationCatholic
Last updated May 2026

~1,631
estimated members
Based on ARDA 2020 data, this is likely one of 12 Catholic congregations in LaPorte County, IN, with an average size of approximately 1,631 members. Catholic accounts for 48% of the county's 141 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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