Catholic Churches
- Roman Catholic Archdiocese of Boston
- St. John the Evangelist Church N. Chelmsford
- St. Mary Church Chelmsford
- Blessed Trinity Parish ~ St.Catherine Church Westford
- St. Margaret of Scotland Church Lowell
- St. Patrick Church Lowell
- Immaculate Conception Church Lowell
- Ste. Marguerite d'Youville Church Dracut
Protestant Churches
- Eliot Presbyterian Church Lowell
- First United Baptist Church Lowell
- First Parish Church United Westford
- First Parish Unitarian Universalist Church Chelmsford
- Grace Community Church Chelmsford
- Lowell First Church of the Nazarene Lowell
- New Song Community Church Westford
- Trinity Lutheran Church Chelmsford
- United Methodist Church Westford
- Bahá'í Faith Westford
- West Chelmsford United Methodist Church
- North Chelmsford Congregational Church
- Central Congregational Church Chelmsford
- Tyngsboro Evangelical Congregatonial Church
- Dunstable Evangelical Congregational Church
- Pawtucket Congregational Church Lowell
- Cavalry Baptist Church of Lowell
- Chelmsford Street Baptist Church Lowell
- Aldersgate United Methodist Church Chelmsford
- Christ Jubilee Church Lowell
