Enrollment for the 25-26 school year is open!
Use District code SMDK-IL when logging in.

It's more than an education ...

it's faith, values and family too!

Mission 
St. Mary Catholic School engages the whole student and family enabling children to grow spiritually and emotionally, achieve their full academic potential, and discover God’s plan.

Vision
St. Mary Catholic School lives and proclaims the Gospel of Christ and the tradition of the Church. We integrate knowledge and truth with the Gospel values in all areas of school, family, and community. We are united as individuals created in God’s image to foster and develop responsible members of society: spiritually, academically, physically, emotionally, and socially.

Little Lancers

K - 8th Grade
Little Lancers 3yr old Preschool is a 3-day program, full day.

Our 4yr old PreKindergarten program has 3-day and 5-day options. Both are full day programs.
St. Mary is fully accredited and provides a comprehensive education from Kindergarten to 8th Grade. Teachers reinforce God’s unique purpose for students while emphasizing academic excellence.

Partnerships & Cutting-Edge Technology

Thanks to our partnership with NIU's Department of Educational Technology, Research, and Assessment, our middle school students explore the transformative potential of artificial intelligence (AI). They develop coding, problem-solving, and computational thinking skills using LEGO Spike Kits and tools like Google Teachable Machines. From training AI models to building AI-driven games, students gain a deep understanding of AI’s capabilities, limitations, and ethical implications, preparing them for a technology-driven future.

Why choose St. Mary School?
Learn more about why parents choose St. Mary School & how scholarships provide opportunities to families.

The Peggy Hoyt Guardian Angel Tuition Assistance Program helps over 50 students a year thanks to your generous donations. 

​Join us on May 2 for Give DeKalb County.
We're looking to raised $20,000 for student scholarships.

Upcoming Events

Save the Date

  • ​Give DeKalb County is May 1 helping us raise funds for our Peggy Hoyt Guardian Angel Tuition Assistance Program helping over 50 students per year attend St. Mary School
  • The 4th Annual Lancer Links Golf Outing will be held at River Heights Golf Course on May 2!

Father Son Nerf Battle

$10.50

The cost is $10 per person. Price includes online transaction fees.


Darts, snacks and tons of fun will be provided.

Bring your PPE (safety gear). ****NO BATTERY OPERATED Guns.


RSVP & Sign up to help here: https://www.signupgenius.com/go/10C0E4BAFA628A3FECF8-55781697-father
Get Tickets

Minecraft Theater Admission Ticket

$14.50

Join us at AMC Theatre in DeKalb April 11th at 6:30 p.m. for a private showing of Minecraft. Tickets price is per person and includes processing fees, entrance to movie, snack pack (small popcorn, small drink/bottled water, & candy), we will also include a themed gift


* Please note there is no printable ticket, you will give mention you are with St. Mary when you arrive. More details will be emailed out once you purchase. 
Get Tickets

Mom & Daughter Paint Party

Sunday, 4/13  from Noon to 2 p.m.

4th Annual Lancer Links Golf Outing

Come golf with us May 2 at River Heights 

St. Mary School Calendar

2023-24 Accomplishments at a Glance

• Jack R (7th grade) placed 4th in the DeKalb County Spelling Bee.​
• All six (7th grade) students who presented at the Regional Science Fair earned first place.
• Arissa B., Charlie D., Aiden G., Norah M., and Jack R. will advance to the IJAS State Science Fair.
• Nine students advanced to the Regional History Fair. Congratulations to Braden J., Nick J., Henry K., Louis K, Addison S., Miranda S., Danielle W., Addie W., and Kennedi W.
• Congratulations to Danielle W.  for her website titled “The Egyptian Theater” placing as a State Finalist at the State History Fair.
• Check out our 2024 ITBS test scores. Students completed these in March 2024. Our 8th grade students composite score was an 11.8 or Junior year, 8th month. 

2022-2023 Accomplishments at a Glance

• Our History Teacher Mrs. LeBouef & the 8th grade class received the 2023 Illinois History Day Governor’s Award. 
• Molly M. (8th grade) competed in the National History Day Competition for her performance of Elizabeth Cady Stanton. Only the top two in each category advance to Nationals. She is the second student at St. Mary's School to achieve this honor.
• Margaret W. (8th grade) received second place and a monetary award for Colonial Dames special award at the National History Day Competition.
​• Five eighth grade students advanced to State for History Fair.
• Six seventh and eighth grade students qualified for the IJAS State Science Fair.
• Our Math team placed 4th in Division A at the St. Francis Math Contest.
• View our ITBS test scores here. 

    Contact the School Office

Google Map

See what we're up to on social