SchoolRow
#478

Dennis B O'Brien Elementary School

DOVER, NJ · Rockaway Township School District

Regular public school · Grades PK-5 · Suburb, large

478th of 1,324 New Jersey elementary schools statewide · better than 64% Improving

16 MINERAL SPRING DRIVE, DOVER, NJ 07801

(973)361-7330NCES ID 341413004516Directory 202324

295
Students
2023–24 enrollment
9.2:1
Student / teacher ratio
13%
Free / reduced-price lunch
low-income indicator
8.9%
Chronically absent
NJ average 14%

SchoolRow ranks Dennis B O'Brien Elementary School 478th of 1,324 New Jersey elementary schools for 2024–25, based on NJ School Performance Reports 2024–25 English and Math results — better than 64% of elementary schools statewide. Its statewide percentile went from 59th in 2019 to 64th in 2025 — improving.

Statewide percentile by year
25%50%75%64%201920202025no testing 2020–21

Percent meeting or exceeding the state standard, NJ School Performance Reports 2024–25 · 131 students tested

English Language Arts
Dennis B O'Brien Elementary School
63%
NJ average
53%
Math
Dennis B O'Brien Elementary School
52%
NJ average
42%
Science
Dennis B O'Brien Elementary School
26%
NJ average
27%
English Language Arts over time Dennis B O'Brien Elementary School NJ average
25%50%75%63%53%201920202025no testing 2020–21
Math over time Dennis B O'Brien Elementary School NJ average
25%50%75%52%42%201920202025no testing 2020–21
Science over time Dennis B O'Brien Elementary School NJ average
25%50%75%26%27%201920202025no testing 2020–21

Racial and ethnic breakdown of 295 students (202324, NCES) — history since 1988, with comparable seven-category changes from 2010

Hispanic31%White42%Asian12%Black11%
Hover the pie for details
categories changedHispanic 31%White 42%Asian 12%Black 11%89%19882023
GroupTrend20102023Change
White67.3%41.7% 25.6 pts
Hispanic15.4%30.5% 15.1 pts
Asian14.6%12.2% 2.4 pts
Black2.8%10.8% 8.0 pts
Two or more races0.0%4.7% 4.7 pts

NCES history for this school begins in 1988. Race categories changed by 2010: earlier data combines Asian and Pacific Islander students and does not consistently identify multiracial students. The chart retains that history, while the change table uses 2010 onward.

Typical home value $511K in zip 07801 as of 2026-05 · trend since 2000

$133K$266K$399K$532K$506K200020052010201520202025

Data Provided by Zillow Group

See recently sold homes in 07801 on Zillow →

Closest same-level schools, with 2024–25 state rank · ▲▼ = points better or worse than Dennis B O'Brien Elementary School

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What school district is Dennis B O'Brien Elementary School in?

Dennis B O'Brien Elementary School is part of the Rockaway Township School District district in DOVER, New Jersey.

Is Dennis B O'Brien Elementary School a good school?

SchoolRow ranks Dennis B O'Brien Elementary School 478th of 1,324 New Jersey elementary schools (better than 64% statewide) based on 2024–25 test results (NJ School Performance Reports 2024–25).

What is the racial makeup of Dennis B O'Brien Elementary School?

White 42%, Hispanic 31%, Asian 12%, Black 11% (295 students, 2023–24).

How much do homes near Dennis B O'Brien Elementary School cost?

The typical home value in zip code 07801 is $511K as of 2026-05 (Zillow ZHVI).

Sources: state education department data (NJ School Performance Reports 2024–25, low-income, chronic absenteeism), National Center for Education Statistics via the Urban Institute (enrollment, demographics, staffing), Zillow Group (home values). Rankings are computed by SchoolRow from state English and Math results within grade level; they measure test performance, not everything that makes a school good.