Holy Trinity Greek Orthodox Cathedral
Philadelphia, Delaware
Last updated May 2026

~822
estimated members
Based on ARDA 2020 data, this is likely one of 2 Orthodox congregations in New Castle County, DE, with an average size of approximately 822 members. Orthodox accounts for 1% of the county's 484 congregations.
Source: ARDA 2020 Religious Congregations & Membership Study
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