Christ United Reformed Church in Santee holds weekly Reformed worship on Mast Boulevard, a block east of Mast Park along the eastern corridor where residential neighborhoods meet the foothills approaching Mission Trails Regional Park. The URCNA-affiliated congregation structures its teaching around the Three Forms of Unity — the Heidelberg Catechism, Belgic Confession, and Canons of Dort — and extends pastoral care through referral coordination with clinical providers such as Santee Family Counseling Center on Prospect Avenue for congregants navigating grief or family transitions. The annual Reformation Conference draws attendees from across East County San Diego and strengthens ecumenical relationships with neighboring evangelical congregations in the 92071 ZIP code. A Christmas Concert further anchors the church's cultural programming on the Mast Blvd corridor near Mast Park. Diaconal ministry connects congregants to therapeutic resources including Sacred Discoveries on Carita Court for specialized modalities addressing spiritual and emotional well-being. The worship liturgy follows the URCNA's prescribed order of Votum, Salutation, Law reading, congregational psalm-singing, and expository sermon, with communion observed on the first and third Sundays of each month.