Dennis B O'Brien Elementary School
Public
Elementary Grades PK–5
Part of Rockaway Township School District
16 MINERAL SPRING DRIVE, DOVER, NJ 07801 · (973) 361-7330
Community ratings
Not rated yetBe the first neighbor to rate this school — an overall score plus Teachers, Communication, Safety and Activities.
Academic performance
Math proficiency27%
State average 25.4%
Reading / language arts42%
State average 47.3%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
298Students enrolled
9:1Student–teacher ratio
26%Free / reduced lunch
SuburbSetting
Regular SchoolSchool type
Enrollment by grade
Kindergarten58
Grade 142
Grade 260
Grade 340
Grade 435
Grade 563
Students
White · 39%117
Hispanic · 31%91
Asian · 14%41
Black · 11%34
Two or more races · 5%14
American Indian/Alaska Native · 0%1
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
310’20
294’21
275’22
295’23
298’24
Location
16 MINERAL SPRING DRIVE DOVER
Neighbor reviews
Sign in to rate this school.
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.