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Average

#64 of 186 private schools in OR

Top 34% of private schools

Harmony Montessori School

Elementary School

17630 SE MAIN ST, Portland, OR 97233

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on 144 schools in Portland. Learn more

Enrollment

31

Student-Teacher

2.9:1

Score

6.9

Grades

Pre-K – 6th

Updated 2021-22

How this school compares

In Portland

#29 of 55

public schools

Oregon elementary schools

#38 of 111

Academic performance

7.3 / 10

Strong

About Harmony Montessori School

Harmony Montessori School serves 31 students in grades pre-kindergarten through sixth in Portland's Multnomah County. This small elementary school operates as a regular public school with an exceptionally low student-teacher ratio of 2.9:1, supported by 11 full-time equivalent teachers who can provide highly individualized attention to each child. The school has earned strong recognition with a MySchoolScout rating of 8.4 out of 10 and ranks #38 out of 186 elementary schools statewide, placing it in the 80th percentile among Oregon schools.

This impressive ranking suggests the school is successfully serving its diverse student community despite operating in an area where families face economic challenges. Harmony Montessori School draws families from the surrounding 97233 ZIP code area, where the median household income is $52,441 and nearly 20% of residents live below the poverty line. The community is working-class, with 18% of adults holding bachelor's degrees or higher, and median home values around $355,900.

The school's intimate size and outstanding student-teacher ratio create an environment where teachers can truly know each child and adapt instruction to individual learning styles. Located in Portland's large suburban setting on SE Main Street, Harmony Montessori School serves as a high-performing educational option for families seeking personalized attention in a close-knit school community.

What Parents Should Know

With an enrollment of 31 students, Harmony Montessori School is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.

With a student-teacher ratio of 2.9:1, Harmony Montessori School offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

As a private school, Harmony Montessori School operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.

Financial Overview

Source: IRS Form 990 (2024 filing)

Per-Pupil Spending
Total expenses ÷ enrollment
$54,187
Per-Pupil Revenue
Total revenue ÷ enrollment
$59,035
Financial Health
Revenue-to-expense ratio (>1.0 = surplus)
1.09x — Stable
Tuition Dependency
Share of revenue from program services (tuition, fees)
14%
Total Assets
End-of-year total assets from IRS filing
$2.9M

Financial data from IRS Form 990 filings via ProPublica Nonprofit Explorer. Per-pupil figures based on current enrollment of 31 students. Not all private schools file Form 990.

Compare to Public Schools

Beta

How Harmony Montessori School compares to 134 public schools serving similar grades in Portland, OR

Student-Teacher Ratio
2.9:1
This School
vs
17.8:1
Public Avg
Avg School Size
31
This School
vs
398
Public Avg
Avg School Scout Rating
6.9
This School
vs
7.6
Public Avg

Student Demographics

White 58.1% vs 0%
Asian 16.1% vs 0%
Hispanic 12.9% vs 0%
Harmony Montessori School Portland Public Avg

Nearby Elementary Schools

School Rating
Harmony Montessori School (this school) 6.9
Patrick Lynch Elementary 5.1
Alder Elementary School 6.3
Rockwood Preparatory Academy 5.1
Centennial Middle School 4.9
Meadows Elementary 6.8
Oliver Middle 2.3
Parklane Elementary School 6.9
Powell Butte Elementary School 4.8
Hartley Elementary School 5.3
Davis Elementary School 6.3
Hauton B Lee Middle School 5.2
Glenfair Elementary School 6.6
HOLLA School 5.0
Wilkes Elementary School 7.2
Arthur Academy 7.8
Lincoln Park Elementary School 4.7
Margaret Scott Elementary School 5.8
Menlo Park Elementary School 7.8
Wheatley School 7.9
Gilbert Heights Elementary School 5.2

Showing 20 of 134 schools. View all schools in Portland

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

Score Breakdown

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 OR.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
A+ 9.7 / 10
View breakdown
Student-Teacher Ratio 2.9:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
C+ 3.7 / 10
View breakdown
School Day Length 6.5 hours
Annual Instructional Hours 1,085.5
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A 9.2 / 10
View breakdown
Diversity Index 60%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
C- 1.7 / 10
View breakdown
Enrollment 31
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 OR

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 58.1%
Asian 16.1%
Hispanic 12.9%
Two or More 12.9%

Source: NCES Private School Survey (PSS)

Location

17630 SE MAIN ST, Portland, OR 97233

Nearby Alternatives

Families considering Harmony Montessori School may also want to explore other elementary schools in the area. Wilkes Elementary School (rated 7.2/10, 2.0 miles away), with a very similar rating. Another option is Parklane Elementary School (rated 6.9/10, 0.9 miles away), with a very similar rating. Additionally, Meadows Elementary (rated 6.8/10, 0.8 miles away), with a very similar rating. For more schools in Portland, see our Portland schools guide .

Nearby Schools

20 within 1.6 mi
School Distance Rating
MORNINGSTAR MONTESSORI HOUSE OF CHILDREN Portland 0.3 mi
Patrick Lynch Elementary Portland 0.3 mi 5.1
Alder Elementary School Portland 0.4 mi 6.3
Rockwood Preparatory Academy Portland 0.4 mi 5.1
Centennial Middle School Portland 0.8 mi 4.9
Meadows Elementary Portland 0.8 mi 6.8
OPEN SCHOOL EAST Portland 0.7 mi 7.8
Centennial High School Gresham 1.1 mi 3.3
Powell Butte Elementary School Portland 1.1 mi 4.8
PORTLAND ADVENTIST ELEMENTARY SCHOOL Gresham 1.2 mi 4.3
Hartley Elementary School Portland 1.2 mi 5.3
Oliver Middle Portland 0.9 mi 2.3
Parklane Elementary School Portland 0.9 mi 6.9
Hauton B Lee Middle School Portland 1.4 mi 5.2
Davis Elementary School Portland 1.2 mi 6.3
Glenfair Elementary School Portland 1.5 mi 6.6
Wilkes Elementary School Portland 2.0 mi 7.2
SERENDIPITY CENTER Portland 1.5 mi 6.6
Reynolds Middle School Fairview 1.8 mi 5.4
FRANCISCAN MONTESSORI EARTH SCHOOL Portland 1.6 mi 7.9

Neighborhood Census ACS (2019-2023)

Census data for ZIP 97233 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$54,886

Median Home Value

$385,100

Median Rent

$1,352/mo

Population

37,518

College Educated

18.5%

Homeownership

49.1%

Avg Commute

27.9 min

Poverty Rate

19.4%

Median Age

36.9

Community Profile

The community surrounding Harmony Montessori School has a median household income of $54,886. It is a community where 19% of adults hold a bachelor's degree or higher. The median home value in the area is $385,100, with a median rent of $1,352/month. The area has a poverty rate of 19.4%. The average commute for residents is 28 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

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

School Rating
PRINCE OF PEACE SCHOOL Portland, OR 6.7
PUDDLETOWN SCHOOL Portland, OR 7.3
MCMINNVILLE MONTESSORI SCHOOL Mcminnville, OR 6.5
ST PETER CATHOLIC SCHOOL Ontario, OR 6.5
LITTLE FRIENDS MONTESSORI Salem, OR 7.5
THE PORTLAND MONTESSORI SCHOOL Portland, OR 5.9

Frequently Asked Questions

Common questions about Harmony Montessori School

What grades does Harmony Montessori School serve?

Harmony Montessori School serves students in grades Pre-K through 6th.

How many students attend Harmony Montessori School?

Harmony Montessori School has an enrollment of approximately 31 students.

What is the student-teacher ratio at Harmony Montessori School?

The student-teacher ratio at Harmony Montessori School is 2.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Harmony Montessori School rank in OR?

Harmony Montessori School is ranked #64 out of 186 private schools in OR.

What is Harmony Montessori School's MySchoolScout rating?

Harmony Montessori School has a composite rating of 6.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

Is Harmony Montessori School a private school?

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

Is Harmony Montessori School a religious school?

No, Harmony Montessori School is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

City Safety
High (6,288/100K)

FBI UCR 2024. City-level (Portland). Data >1 year old.

Quick Facts NCES PSS (SY 2021-22)

Grades
Pre-K – 6th
Enrollment
31
Gender Split
39% M / 61% F
Student-Teacher Ratio
2.9:1
Teachers (FTE)
11
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
6.5 hours
Days Per Year
167 days
Setting
Large Suburb
County
MULTNOMAH
Data Year
2022–2023

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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