Our Parishes

Holy Trinity


Holy Trinity Catholic Church Mission Statement

Holy Trinity Catholic Church. The one and only God is truly a dynamic and self-sufficient community of love, and is therefore the source, model and goal of all other love.

For more information on Holy Trinity Catholic Church CLICK HERE

St. Kilian

St. Kilian Parish Mission Statement

St. Kilian Parish is a Catholic community of faith responding to the call of Jesus Christ through the proclamation of Scripture, the celebration of Eucharist, and in living the sacramental life of the Church.

We are committed to responding to each other through communities and ministries of faith and love, addressing our spiritual, social and educational needs. We believe that each of us is called to be a supportive, compassionate, and caring Christian witness in Mission Viejo, the Diocese of Orange and in the world.

For more information about St. Kilian Catholic Church CLICK HERE

Santiago de Compostela

Santiago de Compostela Catholic Church Mission Statement

We are the pilgrim of God, sharing food for the journey in the celebration of the Eucharist, helping the needy through the service of charity, inviting others to join us on the way.

For more information about Santiago de Compostela Catholic Church CLICK HERE

San Francisco Solano

San Francisco Solano Parish Mission Statement

San Francisco Solano Parish continues the early California missionary spirit to spread the Good News of Jesus Christ. We are committed to Word, Sacrament, and Service.

For more information about San Francisco Solano Catholic Church CLICK HERE

SJSC Involvement at Our Parishes

Parish Altar Servers

We would like to thank those students serving their Parishes and Serra as altar servers. We are grateful for the gifts these young disciples offer in serving the altar.

“The altar server occupies a privileged place in the liturgical celebration. He who serves at Mass, presents himself to a community. He experiences firsthand that Jesus Christ is present and active in every liturgical act. Jesus is present when the community comes together to pray and render praise to God. Jesus is present in the Word of sacred Scripture. Jesus is present above all in the Eucharist under the signs of bread and wine. He acts through the priest who, in the person of Christ, celebrates the holy Mass and administers the sacraments. Therefore, in the liturgy, you are much more than simple "helpers of the parish priest." Above all, you are servers of Jesus Christ, of the eternal High Priest. Thus, you, altar servers, are called in particular to be young friends of Jesus. Be determined to go deeper and to cultivate this friendship with him. You will discover that in Jesus you have found a true friend for life…”
‐Pope John Paul II

Our parishes always welcome students interested in serving our Lord. Please contact your local Parish at the links listed below or Mrs. Louise Valdez at lvaldez@serraschool.org for further information.

Holy Trinity

St. Kilian

Santiago de Compostela

San Francisco Solano

Sacramental Preparation

Families of students preparing for the Sacraments of First Communion and/or First Reconciliation will participate in the Sacramental Preparation Program at their respective parish. There will be a celebratory Mass at St. Serra Junipero Serra Catholic in the month of May after both sacraments are received. Questions in this matter should be directed to your local parish pastor.

Click on the links below to be redirected to your Parish Sacramental Preparation website.

Holy Trinity

St. Kilian

Santiago de Compostela

San Francisco Solano

See Parish Connections - For more information about St Junipero Serra Catholic's connection with our 4 Parishes.