St. Mary's Catholic Church
Joppa, Maryland
Address
2807 Mountain RdDenomination
CatholicLast updated September 2026
1,000-5,000
estimated members
This is likely one of 11 Catholic congregations in Harford County, MD. Catholic accounts for 5% of the county's 205 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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