St. Mary Catholic School Photo #3 - Eager 2nd graders make their First Holy Communion each year.

St. Mary Catholic School

St. Mary Catholic School is a Catholic community supporting parents as primary educators of their children.
We believe education involves the cooperation of students, parents, the church, and the community.
We recognize that each student is a unique creation of God and has specific needs.
Our educational program strives to meet the spiritual, moral, intellectual, social, physical, and emotional needs of each student.
We are a Catholic community that develops Christian values that our students can carry with them to the global community.

Quick Stats (2025)

  • Top Ranked IL School
  • Grades: Prekindergarten-8
  • Enrollment: 163 students
  • Yearly Tuition: $6,390
  • Acceptance rate: 99%
  • Average class size: 18 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Top Rankings

St. Mary Catholic School ranks among the top 20% of private schools in Illinois for:

Category
Attribute
School History

School Overview

Religious Affiliation
Grades Offered
Grades Prekindergarten-8
ADD/ADHD Support
Yes
Learning Difference Programs
Yes
Learning Programs Supported
ASD, speech-language delays, ADHD, dyslexia
Year Founded
1916
First Day of School
Wed. Aug 20, 2025
Last Day of School
Fri. May 29, 2026
School Motto
Where Faith and Knowledge Meet
School Mascot
Fighting Irish

Student Body

Total Students
163 students
Student Body Type
Co-ed
% Students of Color
9%
State avg.: 34%
Students by Grade
St. Mary Catholic School Student By Grade

Academics and Faculty

Total Classroom Teachers
12 teachers
Student : Teacher Ratio
14:1
National avg.: 13:1
% Faculty w/Advanced Degree
16%
Average Class Size
18 students
Classroom Dress Code
Formal
Uniforms are required

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
St. Mary Parishioners receive a discounted tuition rate. Additional discounts are given for multiple students.
Acceptance Rate
99%
National avg.: 85%

Sports

Total Sports Offered
5 sports

Extracurriculars

Total ExtracurricularsTotal Extra-curric.
3 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
Chess Club

Arts and Music Programs:
Chorus, Musical Theater

School Notes

  • Academic excellence and Catholic identity are at the heart of St. Mary Catholic School. Our curriculum is oriented to create an individualized academic experience for each student.
  • Our faculty recognize that not every student has the same academic and emotional needs. Through our inclusive education mindset, we have the resources to support students with gifted capabilities and students with special needs.
  • Our curriculum emphasizes the basic skills necessary for each grade based on the State of Illinois and the Diocese of Rockford standards. The curriculum ensures rigor, a commitment to Catholic education, and a prioritization of skills and standards.
  • Reading, English, math, spelling, science, social studies, and religion are taught at all grade levels. Our math and reading curricula provide our students in grades K-8 the opportunity to learn at an accelerated level or receive additional academic assistance.
  • Specials classes are offered throughout the week. All students receive P.E. instruction, Art experiences, and K-6 students receive music. Technology is integrated into the daily classroom experience. 7th and 8th graders can choose from elective courses such as Home Ec, Film Studies, Health, Public Speaking, and Student Ambassadors.
  • A social-emotional learning curriculum tied to Biblical teachings is taught weekly in homeroom classes and supported school-wide.
Source: Verified school update

Frequently Asked Questions

How much does St. Mary Catholic School cost?
St. Mary Catholic School's tuition is approximately $6,390 for private students.
What is the acceptance rate of St. Mary Catholic School?
The acceptance rate of St. Mary Catholic School is 99%, which is higher than the national average of 90%.
What sports does St. Mary Catholic School offer?
St. Mary Catholic School offers 5 interscholastic sports: Basketball, Cheering, Cross Country, Track and Field and Volleyball.
What is St. Mary Catholic School's ranking?
St. Mary Catholic School ranks among the top 20% of private schools in Illinois for: Oldest founding date.
When is the application deadline for St. Mary Catholic School?
The application deadline for St. Mary Catholic School is rolling (applications are reviewed as they are received year-round).

School Reviews

  5.00 out of 5  (2 reviews)
5  
Our decision to have our children at St Mary's (Woodstock IL.) Was the best decision I have ever made. The school is Solid Catholic, Loving and always going the extra mile to serve with wisdom in mind, not to mention excellent academics. We Christians cannot offer to send our children to public schools- where they teach and encourage communism/ Marxist ideas. This school has a support program for those of low income like myself. My two little boys have never been so happy, making new friends and learning prayers, songs and much more.
- Posted by
5  
Every parent wants the BEST for their child. Public vs private education can be a difficult choice in this economy.When my daughter was entering kindergarten I checked out ALL the options. I knew I wanted to start her education strong in order to establish a solid base for her future of learning. I wanted her to be in an environment that she would enjoy learning, get individual attention, be challenged, in a safe environment surrounded by friends and family with good character and strong morales. I am so thrilled to have chosen St Marys in Woodstock. It is everything I hoped for and more! This is not a government institution and is worth every dollar I invested and every sacrifice I have made to make this happen. Everyone involved including staff, families and children are OUTSTANDING!!! I have also enrolled my son in their pre-school program for all the same reasons. Thank you St. Marys!!!
- Posted by

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Quick Stats (2025)

  • Top Ranked IL School
  • Grades: Prekindergarten-8
  • Enrollment: 163 students
  • Yearly Tuition: $6,390
  • Acceptance rate: 99%
  • Average class size: 18 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Mchenry County, IL is $5,541 for elementary schools (read more about average private school tuition across the country).

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