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#138 of 157 private schools in IA

St Mary School

Elementary School

132 W BUTLER ST, Manchester, IA 52057

Private

Enrollment

203

Student-Teacher

13.5:1

Score

5.0

Grades

Pre-K – 6th

Data vintage2021-22

How this school compares

Iowa private schools

#138 of 157

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St Mary School

5.0/10

Elementary School in Manchester · grades Pre-K – 6th. Start here, then compare fit against nearby and district options.

West Delaware High School

8.1/10

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

Lambert Elementary School

6.9/10

0.8 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 Manchester, IA. St Mary School serves approximately 203 students, and covers grades Pre-K-6th, and has a 13.5:1 student-teacher ratio. St Mary School has a current MySchoolScout rating of 5.0 out of 10 and ranks #138 of 157 private schools in IA.

Structured state assessment records for St Mary School show 81% math proficiency (2025 ISASP) and 86% reading/ELA proficiency (2025 ISASP).

How it compares1.5 pts below IA schools
  • This school 5.0 · Average
  • IA avg 6.5

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 the 3 public schools in Manchester, IA

Student-Teacher Ratio
13.5:1
This School
vs
13:1
Public Avg
Avg School Size
203
This School
vs
434
Public Avg
Avg School Scout Rating
5.0
This School
vs
8.1
Public Avg

Student Demographics

White 99.5% vs 0%
Hispanic 0.5% vs 0%
St Mary School Manchester Public Avg

All Schools in Manchester

School Rating
St Mary School (this school) 5.0
West Delaware High School 8.1
Lambert Elementary School 6.9
West Delaware 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 IA.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
C+ 3.9 / 10
View breakdown
Student-Teacher Ratio 13.5:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
A- 7.9 / 10
View breakdown
School Day Length 7 hours
Annual Instructional Hours 1,260
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
C- 2.1 / 10
View breakdown
Diversity Index 1%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
A- 8.1 / 10
View breakdown
Enrollment 203
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 IA

Test Scores IA ISASP (2024-25)

Math Proficiency 81.0% (2025 ISASP)
School
State
71.8% (2025 ISASP)
ELA Proficiency 85.8% (2025 ISASP)
School
State
74.4% (2025 ISASP)

Based on 21 test records from IA state assessments. About our data

Student Demographics NCES PSS (SY 2021-22)

White 99.5%
Hispanic 0.5%

Source: NCES Private School Survey (PSS)

Location

132 W BUTLER ST, Manchester, IA 52057

Nearby Alternatives

Families considering St Mary School may also want to explore other elementary schools in the area. Johnston Elementary School (rated 9.6/10, 14.4 miles away, in nearby Hopkinton), which scores notably higher. Another option is Delhi Elementary School (rated 8.4/10, 7.8 miles away, in nearby Delhi), which scores notably higher. Additionally, Earlville Elementary School (rated 7.1/10, 9.5 miles away, in nearby Earlville), which scores notably higher. For more schools in Manchester, see our Manchester schools guide .

Nearby Schools

20 within 19.4 mi
School Distance Rating
West Delaware High School Manchester 0.6 mi 8.1
Lambert Elementary School Manchester 0.8 mi 6.9
West Delaware Middle School Manchester 0.9 mi 9.2
Maquoketa Valley Middle School Delhi 7.8 mi 8.2
Delhi Elementary School Delhi 7.8 mi 8.4
Maquoketa Valley Senior High School Delhi 7.9 mi 7.5
Edgewood-Colesburg High School Edgewood 11.4 mi 7.3
Earlville Elementary School Earlville 9.5 mi 7.1
Johnston Elementary School Hopkinton 14.4 mi 9.6
East Buchanan Elementary School Winthrop 14.1 mi 6.3
East Buchanan High School Winthrop 14.1 mi 6.6
East Buchanan Middle School Winthrop 14.1 mi 6.2
Starmont Elementary School Arlington 17.0 mi 5.7
Starmont High School Arlington 17.0 mi 6.5
Starmont Middle School Arlington 17.0 mi 6.1
North-Linn Middle School Troy Mills 16.8 mi 8.8
North-Linn Senior High School Troy Mills 16.8 mi 7.2
North Linn Elementary Troy Mills 16.8 mi 6.2
Central City Elementary School Central City 19.4 mi 6.7
Central City High School Central City 19.4 mi 6.0

Neighborhood Census ACS (2019-2023)

Census data for ZIP 52057 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$71,467

Median Home Value

$168,800

Median Rent

$737/mo

Population

7,883

College Educated

23%

Homeownership

80.9%

Poverty Rate

9.8%

Median Age

46

Similar Schools

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

School Rating
Erskine Elementary School Cedar Rapids, IA 5.0
James Elementary School Ottumwa, IA 5.0
ST JOSEPH ELEMENTARY SCHOOL Des Moines, IA 5.0
Woodward-Granger Early Learning Center Granger, IA 5.0
Keystone Elementary School Keystone, IA 4.9
ST MALACHY SCHOOL Creston, IA 5.1

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 6th.

How many students attend St Mary School?

St Mary School has an enrollment of approximately 203 students.

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

The student-teacher ratio at St Mary School is 13.5:1. 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 IA?

St Mary School ranks #138 of 157 private schools in IA.

What is St Mary School's MySchoolScout rating?

St Mary School has a current MySchoolScout rating of 5.0 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 School?

Based on loaded state assessment records, St Mary School has 81% math proficiency (2025 ISASP) and 86% reading/ELA proficiency (2025 ISASP).

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
68 Somewhat Walkable
Bike Score
47 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 6th
Enrollment
203
Gender Split
53% M / 47% F
Student-Teacher Ratio
13.5:1
Teachers (FTE)
15
Type
private
Coed Status
coed
Affiliation
Roman Catholic
School Day
7 hours
Days Per Year
180 days
Setting
Distant Town
County
Delaware County

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