06/17/2026
Another year of our alumni graduating from CCHS with the motivation, accolades, honors, and preparation for college. Go SMO Stars ⭐️ 
St. Mary, Star of the Sea Catholic School, Oceanside CA
St. Mary’s is a fully accredited Catholic school, Preschool through 8th grade. Welcome to the web site of St. Mary, Star of the Sea Elementary and Middle School.
Mary’s is a fully accredited Catholic elementary school (K-8) that has served the Oceanside and surrounding communities since 1951. All of our classroom teachers are credentialed while many have advanced degrees. As a participant in the strong tradition of Catholic education in America, we are proud of the positive influence our school has had on the community over these many years, and rightfully
06/17/2026
06/06/2026
One final “Last day of Hula hoop sign” from SMO.
Congratulations Class of 2026!
06/06/2026
Congratulations to the Class of 2026! You are off to great places, today is your day. Always walk with Jesus and know your strong Catholic Foundations here at St. Mary’s Oceanside will be a wonderful guide in life. As Father Brian said, we are the salt of the Earth. Now move mountains young teens and visit your  alma mater. 
The SMO family will always be here praying for you.
06/02/2026
6th graders lead an amazing geology up to the top of an extinct volcano right in our own backyard.
06/02/2026
Traditional 8th grade Disney Day! Class of 2026.
05/29/2026
Our Spring Show “ When You Wish Upon a Star”
05/24/2026
We are so grateful for Father Rey 🙏🏼
05/21/2026
Our Boys Varsity Soccer team of 9, yes 9 SMO boys just made their way to the Championship game! They defeated their opponent today in the playoffs 3-2! Way to go SMO! “Cool Runnings!”
05/20/2026
What a beautiful weekend serving our Parish. The Kindergarten families plus many students in all grades with our Alumni gathered for each mass to lector, greet, usher and Altar serve.
05/19/2026
Congratulations to the class of 2024 from SMO on their Sacrament of Confirmation. Great job to these 10th graders on continuing their Catholic faith.
SMO # list:
Want your school to be the top-listed School/college in Oceanside?
Click here to claim your Sponsored Listing.
Click here to claim your Sponsored Listing.
Location
Category
Contact the school
Telephone
Website
Address
515 Wisconsin Avenue
Oceanside, CA
92054