Total enrollment
15,462
+138 (+1%) vs SY 2020-21
Warren County
New Jersey · Public K-12
Warren County is one of New Jersey's public-school counties, with 41 schools serving about 15,462 students (26 elementary, 7 middle, and 8 high). Median household income in the county is roughly $100,869.
4-year change in Warren County
SY 2020-21 vs SY 2024-25School count
39
-1 (-2%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Warren County ranks
Among counties| Measure | This county | In New Jersey | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 39.4% | #11 of 21 | N/A |
| Enrollment ranked largest first | 15,462 | #19 of 21 | #580 of 2,745 |
| Number of schools ranked most first | 39 | #19 of 21 | N/A |
| Students per teacher ranked fewest first | 10.5:1 | #5 of 21 | #211 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 36.4% | #13 of 21 | #2,234 of 2,526 |
| Diversity index ranked most diverse first | 57.9% | #14 of 21 | #680 of 2,707 |
Counties need at least 3 schools and 1,000 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Warren County school rankings
Residents
110,849
all ages · ACS 5-yr
Schools
41
26 districts
Enrollment
15,462
students · NCES CCD
Median income
$100,869
Below New Jersey avg
Free/reduced lunch
36.4%
Below New Jersey avg
Elementary
26
7,717 students
Middle
7
2,779 students
High
8
4,966 students
Combined / other
0
schools
LARGEST DISTRICT
Phillipsburg School District
3,876 students · 26 districts in Warren County
County vs. school enrollment demographics
Left bar is the racial makeup of Warren County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
County residents
School enrollment
Bachelor's+
36.5%
adults 25+
Poverty rate
5.7%
ACS 5-year
Unemployment
5.1%
civilian labor
Median age
44
19.3% under 18
Test scores in Warren County
Latest 2024-25 ELA proficiency, 34 schools ranked. New Jersey state average: 53.1%.
Top 5 schools (ELA)
Lowest 5 schools (ELA)
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Phillipsburg High School | Phillipsburg | High | 09-12 | 1,750 | · |
| Warren Hills Regional High School | Washington | High | 09-12 | 1,050 | · |
| Hackettstown High School | Hackettstown | High | 09-12 | 868 | · |
| Phillipsburg Middle School | Phillipsburg | Middle | 06-08 | 636 | · |
| Phillipsburg Elementary School | Phillipsburg | Elementary | 03-05 | 621 | · |
| North Warren Regional School | Blairstown | High | 07-12 | 582 | · |
| Mansfield Township Elementary | Port Murray | Elementary | PK-06 | 570 | · |
| Hackettstown Middle School | Hackettstown | Middle | 05-08 | 507 | · |
| Warren Hills Regional Middle School | Washington | Middle | 07-08 | 477 | · |
| Phillipsburg Early Childhood Learning Center | Phillipsburg | Elementary | PK-01 | 449 | · |
| Philipsburg Primary School | Phillipsburg | Elementary | KG-02 | 420 | · |
| Blairstown Elementary School | Blairstown | Elementary | PK-06 | 418 | · |
| Warren County Vocational Technical School | Washington | High | 09-12 | 413 | · |
| Greenwich School | Stewartsville | Elementary | PK-05 | 397 | · |
| Lopatcong Elementary School | Phillipsburg | Elementary | PK-04 | 389 | · |
| Great Meadows Regional Middle School | Great Meadows | Middle | 04-08 | 361 | · |
| Central Elementary School | Great Meadows | Elementary | PK-03 | 349 | · |
| Lopatcong Township Middle School | Phillipsburg | Middle | 05-08 | 335 | · |
| Willow Grove Elementary School | Hackettstown | Elementary | 02-04 | 320 | · |
| Pohatcong Township School | Phillipsburg | Elementary | PK-08 | 318 | · |
| Belvidere High School | Belvidere | High | 09-12 | 303 | · |
| Hatchery Hill Elementary School | Hackettstown | Elementary | PK-01 | 283 | · |
| Taylor Street Elementary School | Washington | Elementary | PK-02 | 280 | · |
| Washington Memorial Elementary School | Washington | Elementary | 03-06 | 280 | · |
| Belvidere Elementary School | Belvidere | Elementary | PK-08 | 274 | · |
| White Township Consolidated School | Belvidere | Elementary | PK-08 | 274 | · |
| Oxford Central School | Oxford | Elementary | PK-08 | 262 | · |
| Brass Castle School | Washington | Elementary | 04-06 | 261 | · |
| Allamuchy Township School | Allamuchy | Middle | 03-08 | 253 | · |
| Franklin Township School | Washington | Elementary | PK-06 | 251 | · |
| Alpha Borough School | Alpha | Elementary | PK-08 | 215 | · |
| Stewartsville Middle School | Stewartsville | Middle | 06-08 | 210 | · |
| Harmony Township School | Phillipsburg | Elementary | PK-08 | 190 | · |
| Knowlton Township Board of Education | Delaware | Elementary | PK-06 | 174 | · |
| Mountain Villa School | Allamuchy | Elementary | PK-02 | 173 | · |
| Port Colden School | Washington | Elementary | 01-03 | 170 | · |
| Ridge and Valley Charter School | Frelinghuysen | Elementary | KG-08 | 134 | · |
| Hope Township School | Hope | Elementary | PK-08 | 124 | · |
| Frelinghuysen Township Elementary School | Newton | Elementary | PK-06 | 121 | · |
| WARREN REGIONAL SCHOOL | Port Murray | High | 09-12 | 0 | · |
| WARREN RCH | Oxford | High | 11-11 | · | · |
Cities in Warren County
Phillipsburg9 schoolsWashington8 schoolsBelvidere3 schoolsHackettstown3 schoolsBlairstown2 schoolsGreat Meadows2 schoolsPort Murray2 schoolsStewartsville2 schoolsAllamuchy1 schoolAllamuchy1 schoolAlpha1 schoolDelaware1 schoolFrelinghuysen1 schoolHackettstown1 schoolHope1 schoolNewton1 schoolOxford1 schoolOxford1 school
About Warren County
Warren County is an average-sized New Jersey county of about 110,849 residents, home to 41 public schools and roughly 15,462 students.
Stepping back, census numbers show median household income runs near $100,869, about 37% of adults have a bachelor's degree or above, and roughly 6% of residents live below the federal poverty line.
Looking at the level breakdown, Warren County spans 26 elementary schools (7,717 students), 7 middle schools (2,779), and 8 high schools (4,966).
Phillipsburg School District is the biggest district by enrollment, covering about 3,876 students across Warren County.
Trend over the past 4 years. Combined enrollment now sits at 15,462 students, stayed largely flat from the 15,324 reported in SY 2020-21. The school count fell from 40 to 39 across the same 4-year window.
On this page, the community for Warren County discusses open enrollment windows, redistricting talk, and busing logistics. Posts come from current and former families, staff, and alumni.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data