Average
#1559 of 2,466 schools in NJ
William Mason School
Elementary School · Montville Township School District
5 SHAWNEE TRAIL, Montville, NJ 07045
Enrollment
290
Student-Teacher
9.1:1
Score
5.9
Grades
Kindergarten – 5th
Enrollment
290
Student-Teacher
9.1:1
Score
5.9
Grades
Kindergarten – 5th
Data vintage
2022-23
Data vintage2022-23
How this school compares
New Jersey schools
#1,559 of 2,466
In Montville
#3 of 3
public schools
In district
#7 of 7
Montville Township School District
School environment
9.2 / 10
Excellent
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William Mason School
Elementary School in Montville · grades Kindergarten – 5th. Start here, then compare fit against nearby and district options.
Boonton High School
1.9 mi away. Use as a geographic alternative in the same move search.
The Craig School High School
1.8 mi away. Use as a geographic alternative in the same move search.
About William Mason School
William Mason School is a public elementary school in Montville, NJ, part of Montville Township School District. William Mason School serves approximately 290 students, and covers grades Kindergarten-5th, and has a 9.1:1 student-teacher ratio. William Mason School has a current MySchoolScout rating of 5.9 out of 10 and ranks #1,559 of 2,466 schools in NJ.
Structured state assessment records for William Mason School show 71% math proficiency (multi-year average, 2009-2025) and 74% reading/ELA proficiency (multi-year average, 2009-2025).
- This school 5.9 · Average
- District avg 7.6
- NJ avg 6.5
What Parents Should Know
At 9.1:1 students to teachers, William Mason School sits well below the national average. Smaller classes like that usually mean more one-on-one time between students and teachers.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
William Mason School — Students at William Mason School score 65% proficient, which is below what's typical for similar communities (expected: 66%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
5.2%
Students qualifying for federal meal assistance
Test Scores NJ NJSLA (2024-25)
Based on 41 test records from NJ state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 3.5/10.
How William Mason School Compares
See how William Mason School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
5 SHAWNEE TRAIL, Montville, NJ 07045
Nearby Alternatives
Families considering William Mason School may also want to explore other elementary schools in the area. Rockaway Valley School (rated 8.2/10, 2.4 miles away, in nearby Boonton Township), which scores notably higher. Another option is Cedar Hill School (rated 8.1/10, 2.4 miles away, in nearby Towaco), which scores notably higher. Additionally, Valley View School (rated 7.8/10, 3.1 miles away, in nearby Montville Township), which scores notably higher. For more schools in Montville, see our Montville schools guide .
Nearby Schools
20 within 3.1 mi| School | Distance | Rating |
|---|---|---|
| Boonton High School Boonton | 1.9 mi | 5.3 |
| THE CRAIG SCHOOL HIGH SCHOOL Montville | 1.8 mi | 6.9 |
| CRAIG SCHOOL, HIGH SCHOOL Montville | 1.8 mi | 6.5 |
| John Hill School Boonton | 2.0 mi | 7.1 |
| School Street School Boonton | 2.0 mi | 7.4 |
| OUR LADY OF MOUNT CARMEL SCHOOL Boonton | 2.0 mi | 5.1 |
| SEDES SAPEINTIAE SCHOOL INC Boonton | 2.0 mi | — |
| ALPHABETLAND Boonton | 2.2 mi | — |
| Robert R Lazar Middle School Montville | 2.3 mi | 7.4 |
| TRINITY CHRISTIAN SCHOOL Montville | 2.7 mi | 7.6 |
| APPLE MONTESSORI SCHOOL OF TOWACO Towaco | 2.1 mi | — |
| Montville Township High School Montville | 2.6 mi | 7.6 |
| ABC'S OF LEARNING Towaco | 2.3 mi | — |
| Knollwood Elementary School Parsippany | 3.1 mi | 6.0 |
| Cedar Hill School Towaco | 2.4 mi | 8.1 |
| Rockaway Valley School Boonton Township | 2.4 mi | 8.2 |
| SHEPARD SCHOOL Kinnelon | 3.3 mi | 6.6 |
| Valley View School Montville Township | 3.1 mi | 7.8 |
| Lake Hiawatha Elementary School Parsippany | 3.6 mi | 5.3 |
| Mountain Lakes High School Mountain Lakes | 3.1 mi | 7.5 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 07045 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$179,279
Median Home Value
$647,200
Median Rent
$3,501/mo
Population
10,206
College Educated
67.6%
Homeownership
97.8%
Avg Commute
34.6 min
Poverty Rate
2.9%
Median Age
48.6
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Betty McElmon Elementary School West Long Branch, NJ | 5.9 |
| Captain James Lawrence Elementary School Burlington, NJ | 5.9 |
| Catherine A Dwyer Elementary School Wharton, NJ | 5.9 |
| Jefferson Elementary School West Caldwell, NJ | 5.9 |
| Lafayette Elementary School Bound Brook, NJ | 5.9 |
| Olivet Elementary School Pittsgrove, NJ | 5.9 |
Frequently Asked Questions
Common questions about William Mason School
What grades does William Mason School serve?
William Mason School serves students in grades Kindergarten through 5th.
How many students attend William Mason School?
William Mason School has an enrollment of approximately 290 students.
What is the student-teacher ratio at William Mason School?
The student-teacher ratio at William Mason School is 9.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does William Mason School rank in NJ?
William Mason School ranks #1,559 of 2,466 schools in NJ.
What is William Mason School's MySchoolScout rating?
William Mason School has a current MySchoolScout rating of 5.9 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 William Mason School?
Based on loaded state assessment records, William Mason School has 71% math proficiency (multi-year average, 2009-2025) and 74% reading/ELA proficiency (multi-year average, 2009-2025).
Is William Mason School a charter school?
No, William Mason School is not a charter school. It is a traditional public school operated by the local school district.
Is William Mason School a Title I school?
No, William Mason School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for William Mason School?
5.2% of students at William Mason School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 5th
- Enrollment
- 290
- Student-Teacher Ratio
- 9.1:1
- Teachers (FTE)
- 32
- Free/Reduced Lunch
- 5.2%
- Type
- regular
- Setting
- Large Suburb
- County
- Morris County
- Chronic Absenteeism (SY 2022-23)
- 11.0%
- Phone
- (973) 331-7100
Resources & Links
District
Montville Township School District- District Enrollment
- 3,472
- Schools in District
- 7
- Per-Pupil Spending
- $29,250
- District Rank
- #7 of 7
Other Schools in This District
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