A−
William Mason School
PublicElementaryGrades K–5
5 Shawnee Trail, Montville, NJ 07045 · (973) 331-7100 · Part of Montville Township School District
Students
285
Students per teacher
9:1
Free or reduced lunch
4%
Setting
Suburb
Grades
K–5
What stands out about William Mason School
- School Grade A−: near the top of New Jersey’s public schools
- Math proficiency 17 pts above the state
- Reading / language arts 15 pts above the state
- Small classes: 9:1 students per teacher
- Enrollment up 19.2% since 2020
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency42%
State average 25.4%
Reading / language arts62%
State average 47.3%
Location
Directions ↗
5 Shawnee Trail, Montville
Students
Enrollment by grade
Kindergarten45
Grade 141
Grade 254
Grade 344
Grade 448
Grade 553
Enrollment over time
239’20
255’21
277’22
290’23
285’24
Up 19.2% since 2020.
Who goes here
White 72%Asian 13%Hispanic 11%Two or more races 3%Black <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention William Mason School.
Other schools in Montville Township School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.