Building a firm foundation through Christ-centered education.

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Mariners Christian School Oceanside Principal, Kim DeAllen


Welcome to Mariners Christian School, Oceanside! 

I am excited and honored to serve as the Principal for the new Mariners Christian School Oceanside campus that will launch for the 2024-2025 school year. MCS is truly grateful to open a second campus on the grounds of Mariners Church, Oceanside. 

Our mission, “building a firm foundation through Christ-centered education” has guided us for over 37 years and this will continue to be true for MCS Oceanside. Our commitment to seeing every student thrive in a Christ-honoring environment is unwavering.

We are a distinctly Christian, covenant school dedicated to the continual pursuit of our core values to foster a deep Love for Christ, provide Exemplary Academics, build Connected Community, and promote a Culture of Innovation with a purposeful Focus on the Whole Child

David writes in Psalm 139 “I praise you, for I am fearfully and wonderfully made. Wonderful are your works; my soul knows it well.” We believe that each student is uniquely and wonderfully made in the image of God. Through programs such as Maker Education, Art, and Music, MCS is passionate about nurturing and growing the unique gifts and passions of each child.

In addition, MCS strives to foster a joy of learning through rigorous and comprehensive instruction, academic programs, and curriculum all taught through a Biblical worldview. Differentiation is provided through small group instruction as we provide safe and nurturing learning environments that engage students in their learning. 

It is our prayerful desire that our students develop a deep love for Christ reflected in their hearts, actions, and character. We want students to know Jesus’ love for them, His truth, and that their identity is found in Him. MCS is a place where your child will be loved, challenged, and nurtured academically, spiritually, socially, and emotionally. 

I invite you to complete the inquiry form to learn more about MCS, tour our Costa Mesa campus, attend MCS Oceanside preview and informational events, and attend the upcoming Spring Open House. Come see what being a MCS lion is all about! We are excited about the possibility to partner with you to “build a firm foundation” that will last a lifetime.  

 In His Service, 

Kimberly DeAllen

Contact Us: (442)-500-5848

4010 Mystra Dr, Oceanside, CA 92056

Harrison, Heather - Head of School


For over 30 years, Mariners Christian School has partnered with parents to build a firm foundation through Christ-centered education. We are a distinctly Christian school dedicated to the continual pursuit of our core values to foster a deep Love for Christ, provide Exemplary Academics, build Connected Community, and promote a Culture of innovation with a purposeful Focus on the Whole Child. From transitional kindergarten through eighth grade, we desire for our students to thrive in every way as we provide an outstanding education with authentic spiritual development in a Christ-honoring environment.

At MCS we are passionate about discovering and nurturing the unique gifts of each child. Our highly skilled and dedicated faculty is committed to inspiring children to grow in who God has created them to be as they explore their God given gifts and talents, uncover the creativity inside of them, strengthen their ability to think critically and solve problems, and expand the necessary skills of communicating and collaborating with others. Our rigorous and comprehensive programs focus not only on learning but on developing skills, habits, and character that will shape them for a lifetime. Above all else, our entire staff is committed to encouraging students to building an authentic and personal relationship with Jesus Christ and this is our highest calling.

In this ever-changing and challenging world, it is vital that children know God’s truth, understand their identity lies in being a son or daughter of the King, mature in wisdom and knowledge, and grow in confidence in all God created them to be. Within the Mariners Christian School community of administration, faculty, staff, parents, and students are safe to learn and grow as they become difference makers for His kingdom.

I invite you to visit our campus, tour our classrooms, and personally discover the difference that a Mariners education can make in the life of a child.

In Him,