St. Joseph's Catholic Church
Trenton, New Jersey
St. Joseph's Catholic Church is located at 540 North Olden Avenue in Trenton, New Jersey. It is part of the Catholic Diocese of Trenton, overseen by Bishop David M. O'Connell, C.M. The church can be contacted by phone at (609) 394-5757 or by fax at (609) 599-4402. The website also references the Cathedral of Saint Mary of the Assumption, a related parish that has served the spiritual needs of the community for over 140 years and maintains over 1000 registered families. Both parishes welcome all people to join their community and participate in various organizations and ministries.
Last updated August 2026
1,000-5,000
estimated members
This is likely one of 23 Catholic congregations in Mercer County, NJ. Catholic accounts for 58% of the county's 299 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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