Saint Louis De Montfort Roman Catholic Church
New York
DenominationCatholic
Phone(631) 744-8566
Last updated May 2026

5,000-20,000
estimated members
This is likely one of 72 Catholic congregations in Suffolk County, NY. Catholic accounts for 82% of the county's 726 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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