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Very Good

#152 of 571 private schools in WI

Top 26% of private schools

St Mary Parish School

Elementary School · Hales Corners, WI

A private elementary school in Hales Corners, WI serving grades Pre-K – 8th.

Private

9553 W EDGERTON AVE, Hales Corners, WI 53130

  • Math 46% vs WI 50% (2025)
  • Reading 48% vs WI 49% (2025)
  • 11.9:1 student-teacher ratio

Academics

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 WI.

Classroom Attention
?Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
B6.0 / 10
View breakdown
Student-Teacher Ratio11.9:1
Instructional Commitment
?Total annual instructional hours based on school day length and days per year. (15% of overall score)
B+6.8 / 10
View breakdown
School Day Length7 hours
Annual Instructional Hours1,239
Diversity & Inclusion
?Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A-8.0 / 10
View breakdown
Diversity Index29%
Community Context

Data not available

School Profile
?Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A-8.3 / 10
View breakdown
Enrollment316
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 WI

2025 FORWARD proficiency

Most recent published year. School vs. WI average.

Math Proficiency46%(2025 FORWARD)
School
State
50%(2025 FORWARD)
ELA Proficiency48%(2025 FORWARD)
School
State
49%(2025 FORWARD)

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

The neighborhood

Where St Mary Parish School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.

Getting around & local context

  • Walk 32Car-Dependent
  • Bike 40Somewhat Bikeable
  • City Safety: Elevated745/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Hales Corners), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$86,806

Median home value

$290,400

Median rent

$1,274/mo

College educated

41.7%

Homeownership

58.2%

Poverty rate

3.8%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 53130; this is area context, not an attendance boundary.

Programs & students

Student demographicsNCES Private School Universe Survey (PSS) (SY 2021–22)

White83.5%
Hispanic9.2%
Two or More4.7%
Asian1.6%
Black0.9%

Source: NCES Private School Universe Survey (PSS)

Compare nearby

Nearby same-level schools

4 from a 5-mile search

SchoolScoreGradesDistanceEnrollmentCompare
St Jacobi Evangelical Lutheran SchoolPrivate · tuition4.9privatePK–80.8 mi204Compare →
Journeys Lutheran SchoolPrivate · tuition7.6private3–121.0 mi75Compare →
Core4Charter · enrollment unverified3.5PK1.3 mi106Compare →
Edgerton ElementaryEnrollment path unverified8.7PK–51.3 mi376Compare →

Distance is proximity only; it is not attendance eligibility.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Public and private scores come from different models and are shown side by side, not blended into one ranking.

St Mary Parish School is listed in Hales Corners, WI; verify the current enrollment path directly.

About St Mary Parish School

St Mary Parish School is a private elementary school in Hales Corners, WI, serving approximately 316 students in grades Pre-K-8th with a 11.9:1 student-teacher ratio. It holds a MySchoolScout rating of 7.1 out of 10 and ranks #152 of 571 private schools in WI. State assessment records show 46% math proficiency (2025 FORWARD) and 48% reading/ELA proficiency (2025 FORWARD).

Frequently asked questions

Common questions about St Mary Parish School

What grades does St Mary Parish School serve?

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

How many students attend St Mary Parish School?

St Mary Parish School has an enrollment of approximately 316 students.

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

The student-teacher ratio at St Mary Parish School is 11.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does St Mary Parish School rank in WI?

St Mary Parish School ranks #152 of 571 private schools in WI.

What is St Mary Parish School's MySchoolScout rating?

St Mary Parish School has a current MySchoolScout rating of 7.1 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at St Mary Parish School?

Based on loaded state assessment records, St Mary Parish School has 46% math proficiency (2025 FORWARD) and 48% reading/ELA proficiency (2025 FORWARD).

Is St Mary Parish School a private school?

Yes, St Mary Parish 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 Parish School a religious school?

St Mary Parish School has a Roman Catholic religious affiliation.

School factsNCES Private School Universe Survey (PSS) (SY 2021–22)

Grades
Pre-K – 8th
Enrollment
316
Gender Split
43% M / 57% F
Student-Teacher Ratio
11.9:1
Teachers (FTE)
27
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
7 hours
Days Per Year
177 days
Setting
Large Suburb
County
Milwaukee County
Area population (ZIP 53130)
7,647
Area average commute
21 min
Area median age
38.1
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Private School Universe Survey (PSS) · SY 2021–22 · Low confidence
  • Vintage not available. Do not use this measure alone.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2025 FORWARD · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 FORWARD. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 FORWARD · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 FORWARD. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 53130; this does not measure the attendance area.

Evidence periods: Rating mixed/unknown input periods; assessments 2025 FORWARD; directory SY 2021–22

About our data · How we calculate scores

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