St. Mark’s Historical Church Tours
Allentown, Pennsylvania
Last updated June 2026

~793
estimated members
Based on ARDA 2020 data, this is likely one of 13 Catholic congregations in Carbon County, PA, with an average size of approximately 793 members. Catholic accounts for 44% of the county's 85 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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