Millstone River School
Public
Elementary Grades 3–5
Part of West Windsor-Plainsboro Regional School District
75 GROVERS MILL ROAD, PLAINSBORO, NJ 08536 · (609) 716-5500
Community ratings
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Academic performance
Math proficiency56%
State average 25.4%
Reading / language arts59%
State average 47.3%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
772Students enrolled
9:1Student–teacher ratio
10%Free / reduced lunch
RuralSetting
Regular SchoolSchool type
Enrollment by grade
Grade 3147
Grade 4291
Grade 5334
Students
Asian · 76%590
White · 8%63
Hispanic · 5%40
Black · 5%39
Two or more races · 4%34
American Indian/Alaska Native · 1%6
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
967’20
869’21
831’22
813’23
772’24
Location
75 GROVERS MILL ROAD PLAINSBORO
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.