Average
#133 of 157 private schools in IA
St Mary School
Elementary School
303 3RD AVE N, Humboldt, IA 50548
Enrollment
117
Student-Teacher
17.7:1
Score
5.2
Grades
Kindergarten – 6th
Enrollment
117
Student-Teacher
17.7:1
Score
5.2
Grades
Kindergarten – 6th
Data vintage
2021-22
Data vintage2021-22
How this school compares
Iowa private schools
#133 of 157
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
Elementary School in Humboldt · grades Kindergarten – 6th. Start here, then compare fit against nearby and district options.
Taft Elementary School
0.3 mi away. Use as a geographic alternative in the same move search.
Clyde D Mease Elementary School
0.5 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 Humboldt, IA. St Mary School serves approximately 117 students, and covers grades Kindergarten-6th, and has a 17.7:1 student-teacher ratio. St Mary School has a current MySchoolScout rating of 5.2 out of 10 and ranks #133 of 157 private schools in IA.
Structured state assessment records for St Mary School show 94% math proficiency (2025 ISASP) and 94% reading/ELA proficiency (2025 ISASP).
- This school 5.2 · Average
- IA avg 6.5
What Parents Should Know
At 117 students, St Mary School is on the smaller side. That usually buys more individual attention and teachers who know every kid by name, with the trade-off of fewer electives and extracurriculars than a larger school can staff. Ask what activities it actually offers.
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
BetaHow St Mary School compares to the 3 public schools in Humboldt, IA
Student Demographics
All Schools in Humboldt
| School | Rating |
|---|---|
| St Mary School (this school) | 5.2 |
| Taft Elementary School | 9.0 |
| Humboldt Middle School | 8.4 |
| Humboldt High School | 5.7 |
Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.
Score Breakdown
PreliminaryWhat 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.
Data Unavailable
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)
Based on 9 test records from IA state assessments. About our data
Student Demographics NCES PSS (SY 2021-22)
Source: NCES Private School Survey (PSS)
Location
303 3RD AVE N, Humboldt, IA 50548
Nearby Alternatives
Families considering St Mary School may also want to explore other elementary schools in the area. Taft Elementary School (rated 9.0/10, 0.3 miles away), which scores notably higher. Another option is COMMUNITY CHRISTIAN SCHOOL (rated 8.1/10, 16.1 miles away, in nearby Fort Dodge), which scores notably higher. Additionally, Manson Northwest Webster Elementary (rated 7.0/10, 17.0 miles away, in nearby Barnum), which scores notably higher. For more schools in Humboldt, see our Humboldt schools guide .
Nearby Schools
20 within 15.6 mi| School | Distance | Rating |
|---|---|---|
| Taft Elementary School Humboldt | 0.3 mi | 9.0 |
| Clyde D Mease Elementary School Dakota City | 0.5 mi | 3.9 |
| Humboldt Middle School Humboldt | 1.1 mi | 8.4 |
| Humboldt High School Humboldt | 1.1 mi | 5.7 |
| Twin Rivers Elementary School Bode | 10.6 mi | 6.1 |
| Feelhaver Elementary School Fort Dodge | 14.1 mi | 4.0 |
| Cooper Elementary School Fort Dodge | 14.4 mi | 3.1 |
| Duncombe Elementary School Fort Dodge | 14.8 mi | 3.3 |
| Fort Dodge High School Fort Dodge | 14.8 mi | 2.9 |
| ST EDMOND CATHOLIC SCHOOL Fort Dodge | 14.9 mi | 5.3 |
| ST EDMOND CATHOLIC SCHOOL Fort Dodge | 14.9 mi | 5.0 |
| Fort Dodge Middle School Fort Dodge | 14.9 mi | 5.0 |
| Early Childhood Center Fort Dodge | 15.3 mi | 5.8 |
| ST PAUL LUTHERAN SCHOOL Fort Dodge | 15.5 mi | 5.3 |
| Gilmore City Elementary School Gilmore City | 11.5 mi | 4.5 |
| Butler Elementary School Fort Dodge | 16.1 mi | 2.7 |
| COMMUNITY CHRISTIAN SCHOOL Fort Dodge | 16.1 mi | 8.1 |
| Manson Northwest Webster Elementary Barnum | 17.0 mi | 7.0 |
| Eagle Grove Elementary Eagle Grove | 15.6 mi | 3.9 |
| Robert Blue School Eagle Grove | 15.6 mi | 3.7 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 50548 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$71,043
Median Home Value
$177,700
Median Rent
$731/mo
Population
5,482
College Educated
25.1%
Homeownership
71%
Poverty Rate
13.4%
Median Age
41.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Bennett Elementary School Bennett, IA | 5.2 |
| SACRED HEART ELEMENTARY SCHOOL Maquoketa, IA | 5.2 |
| ST PAUL LUTHERAN SCHOOL Fort Dodge, IA | 5.3 |
| ST MALACHY SCHOOL Creston, IA | 5.1 |
| Stratford Elementary Stratford, IA | 5.1 |
| ST ROSE OF LIMA SCHOOL Denison, IA | 5.0 |
Frequently Asked Questions
Common questions about St Mary School
What grades does St Mary School serve?
St Mary School serves students in grades Kindergarten through 6th.
How many students attend St Mary School?
St Mary School has an enrollment of approximately 117 students.
What is the student-teacher ratio at St Mary School?
The student-teacher ratio at St Mary School is 17.7:1. 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 #133 of 157 private schools in IA.
What is St Mary School's MySchoolScout rating?
St Mary School has a current MySchoolScout rating of 5.2 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 94% math proficiency (2025 ISASP) and 94% 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.
Explore More Schools
Neighborhood Context
Powered by 
Quick Facts NCES PSS (SY 2021-22)
- Grades
- Kindergarten – 6th
- Enrollment
- 117
- Gender Split
- 50% M / 50% F
- Student-Teacher Ratio
- 17.7:1
- Teachers (FTE)
- 7
- Type
- private
- Coed Status
- coed
- Affiliation
- Roman Catholic
- School Day
- 7 hours
- Days Per Year
- 178 days
- Setting
- Remote Town
- County
- Humboldt County
- Phone
- (515) 332-2134
Resources & Links
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 rateRelated 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.