Welcome to St. Mary Catholic School

St. Mary Catholic School is dedicated to providing a faith-filled, academically excellent education for students in a nurturing environment. For generations, we’ve helped children grow in knowledge, character, and faith, preparing them to become confident learners and compassionate leaders. Whether you’re exploring enrollment or looking for ways to support our students, we welcome you to our school community.

About Us

Since 1958, we've helped students grow in their Catholic faith through daily prayer, weekly Mass, and values woven into every subject, with the opportunity to receive First Communion and Confirmation. ​Learn more about our mission, values, and community.

ABOUT US

Admissions

​We offer strong core academics with experiences, dedicated teachers, plus art, music, and technology classes. We use tools like SmartBoards and 1:1 iPads to enhance learning. Schedule a tour and see what it's like to be a St. Mary Royal.

ADMISSIONS

Student Life

We’re a close-knit school where children feel known, supported, and empowered to be their best. 
From athletics to extracurriculars to family-focused events, learn more about the ways we help every St. Mary student connect and thrive. 

STUDENT LIFE

Preschool

Beginning with the 2026–2027 school year, we're excited to offer a blended PreK 3 & 4 program designed to nurture curiosity, build confidence, and lay a strong academic and spiritual foundation for our youngest learners.

PRESCHOOL

Quick Links

School Calendar

Stay up-to-date on all the things happening at St. Mary School this year.
2025-2026 School Calendar

Supply Lists

Make sure you have all the supplies you need for your student to succeed.
​2025-2026 School Supply Lists

Dress Code

Dress for success! Learn about our dress code expectations​.
​Dress Code (updated July 2025)

St. Mary School is proudly supported by St. Mary Parish in Plano and St. Patrick Parish in Yorkville.