Skip to main content

Average

#297 of 716 private schools in IL

Top 41% of private schools

St Mary School

Elementary School

50 N BUFFALO GROVE RD, Buffalo Grove, IL 60089

Private

Enrollment

220

Student-Teacher

14.3:1

Score

6.6

Grades

Pre-K – 8th

Data vintage2021-22

How this school compares

Illinois private schools

#297 of 716

In Buffalo Grove

#2 of 2

public schools

School shortlistprofile + nearby

Shortlisting around St Mary School?

Use this profile as one decision point, then compare nearby options, source confidence, and commute fit before picking a neighborhood around it.

Shortlist starter

Start with these real page-level signals, then use the full table and map below.

St Mary School

6.6/10

Elementary School in Buffalo Grove · grades Pre-K – 8th. Start here, then compare fit against nearby and district options.

Joyce Kilmer Elem School

5.8/10

0.8 mi away. Use as a geographic alternative in the same move search.

Buffalo Grove Montessori School

Nearby

1.1 mi away. Use as a geographic alternative in the same move search.

About St Mary School

St Mary School is a private elementary school in Buffalo Grove, IL. St Mary School serves approximately 220 students, and covers grades Pre-K-8th, and has a 14.3:1 student-teacher ratio. St Mary School has a current MySchoolScout rating of 6.6 out of 10 and ranks #297 of 716 private schools in IL.

How it compares0.4 pts above IL schools
  • This school 6.6 · Average
  • IL avg 6.2

What Parents Should Know

St Mary School is private, so it runs independently of the local district and sets its own curriculum. That freedom cuts both ways depending on what you want for your child. If you're considering it, start with the practical questions: tuition, financial aid, and how admissions work.

Compare to Public Schools

Beta

How St Mary School compares to 11 public schools serving similar grades in Buffalo Grove, IL

Student-Teacher Ratio
14.3:1
This School
vs
14.2:1
Public Avg
Avg School Size
220
This School
vs
570
Public Avg
Avg School Scout Rating
6.6
This School
vs
8.5
Public Avg

Student Demographics

White 60.9% vs 0%
Asian 15.9% vs 0%
Hispanic 14.1% vs 0%
Black 0.5% vs 0%
St Mary School Buffalo Grove Public Avg

Nearby Elementary Schools

School Rating
St Mary School (this school) 6.6
Joyce Kilmer Elem School 5.8
Earl Pritchett School 9.2
Cooper Middle School 7.7
Tripp School 8.9
Willow Grove Early Learning Ctr 8.1
Henry W Longfellow Elem School 8.0
Ivy Hall Elementary School 9.2
Aptakisic Junior High School 9.1
Prairie Elementary School 9.1
Meridian School 8.9
Twin Groves Middle School 9.2

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

Preliminary

What This Rating Measures

This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in IL.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
C+ 4.1 / 10
View breakdown
Student-Teacher Ratio 14.3:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
A- 7.6 / 10
View breakdown
School Day Length 6.9 hours
Annual Instructional Hours 1,242
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A 8.6 / 10
View breakdown
Diversity Index 58%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A- 8.0 / 10
View breakdown
Enrollment 220
View data sources

Score basis: Private school model

Data coverage: 80% of scoring components had data

Components scored: 4 of 5

Ranking pool: Private schools in IL

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 60.9%
Asian 15.9%
Hispanic 14.1%
Two or More 7.7%
Pacific Islander 0.9%
Black 0.5%

Source: NCES Private School Survey (PSS)

Location

50 N BUFFALO GROVE RD, Buffalo Grove, IL 60089

Nearby Alternatives

Families considering St Mary School may also want to explore other elementary schools in the area. Earl Pritchett School (rated 9.2/10, 0.9 miles away), which scores notably higher. Another option is Ivy Hall Elementary School (rated 9.2/10, 1.3 miles away), which scores notably higher. Additionally, Prairie Elementary School (rated 9.1/10, 1.8 miles away), which scores notably higher. For more schools in Buffalo Grove, see our Buffalo Grove schools guide .

Nearby Schools

20 within 1.9 mi
School Distance Rating
Joyce Kilmer Elem School Buffalo Grove 0.8 mi 5.8
BUFFALO GROVE MONTESSORI SCHOOL Buffalo Grove 1.1 mi
Tripp School Buffalo Grove 1.0 mi 8.9
Earl Pritchett School Buffalo Grove 0.9 mi 9.2
Willow Grove Early Learning Ctr Buffalo Grove 1.1 mi 8.1
Cooper Middle School Buffalo Grove 1.0 mi 7.7
Henry W Longfellow Elem School Buffalo Grove 1.2 mi 8.0
Ivy Hall Elementary School Buffalo Grove 1.3 mi 9.2
TORAH ACADEMY OF BUFFALO GROVE Buffalo Grove 1.2 mi
Buffalo Grove High School Buffalo Grove 1.4 mi 8.4
Eugene Field Elem School Wheeling 1.4 mi 5.5
Booth Tarkington Elem School Wheeling 1.6 mi 6.1
Aptakisic Junior High School Buffalo Grove 1.6 mi 9.1
J W Riley Elem School Arlington Heights 1.8 mi 7.0
Jack London Middle School Wheeling 1.6 mi 6.0
Prairie Elementary School Buffalo Grove 1.8 mi 9.1
NEWHOPE ACADEMY Arlington Heights 1.7 mi 7.9
YACHAD KIDS ACADEMY Buffalo Grove 2.0 mi 7.6
MONTESSORI WORLD OF DISCOVERY Buffalo Grove 1.9 mi
BRIGHT HORIZONS Arlington Heights 1.9 mi

Neighborhood Census ACS (2019-2023)

Census data for ZIP 60089 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$129,932

Median Home Value

$393,000

Median Rent

$2,042/mo

Population

42,781

College Educated

66.7%

Homeownership

81.5%

Avg Commute

27.5 min

Poverty Rate

6.5%

Median Age

42.1

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Arthur Grade School Arthur, IL 6.6
Blackhawk Primary Center Park Forest, IL 6.6
Donovan Elem School Donovan, IL 6.6
Gallatin Elementary School Junction, IL 6.6
Grafton Elem School Grafton, IL 6.6
HOLY ANGELS Chicago, IL 6.6

Frequently Asked Questions

Common questions about St Mary School

What grades does St Mary School serve?

St Mary School serves students in grades Pre-K through 8th.

How many students attend St Mary School?

St Mary School has an enrollment of approximately 220 students.

What is the student-teacher ratio at St Mary School?

The student-teacher ratio at St Mary School is 14.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does St Mary School rank in IL?

St Mary School ranks #297 of 716 private schools in IL.

What is St Mary School's MySchoolScout rating?

St Mary School has a current MySchoolScout rating of 6.6 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

Is St Mary School a private school?

Yes, St Mary School is a private coeducational school with a Roman Catholic affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is St Mary School a religious school?

St Mary School has a Roman Catholic religious affiliation.

11 schools nearby View map →

Neighborhood Context

Walk Score
72 Very Walkable
Bike Score
47 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 8th
Enrollment
220
Gender Split
50% M / 50% F
Student-Teacher Ratio
14.3:1
Teachers (FTE)
15
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
6.9 hours
Days Per Year
180 days
Setting
Large Suburb
County
Lake County

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

Related reading

Get school insights in your inbox

New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.

We respect your privacy. Unsubscribe at any time.