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Middlesex County

New Jersey · Public K-12

The 214 public K-12 schools in Middlesex County cover all standard grade bands (135 elementary, 40 middle, and 33 high), with combined enrollment around 129,255.

7-year change in Middlesex County

SY 2017-18 vs SY 2024-25
Total enrollment
129,255
-1,981 (-2%) vs SY 2017-18
School count
209
+10 (+5%) vs SY 2017-18
% White
22%
was 29%
% Hispanic
35%
was 30%
% Black
10%
was 10%
% Asian
30%
was 30%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
214
34 districts
Enrollment
129,255
NCES CCD
Median income
$111,549
Above New Jersey avg
Free/reduced lunch
42.4%
Above New Jersey avg
Elementary
135
57,342 students
Middle
40
30,262 students
High
33
41,060 students
Combined / other
6
591 students
LARGEST DISTRICT
Edison Township School District
16,617 students · 34 districts in Middlesex County

County vs. school enrollment demographics

Left bar is the racial makeup of Middlesex 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
White
41%
Hispanic
24%
Black
10%
Asian
26%
Two or more
10%
Native American
1%
Pacific Islander
0%
School enrollment
White
22%
Hispanic
35%
Black
10%
Asian
30%
Two or more
3%
Native American
0%
Pacific Islander
0%
Bachelor's+
45.6%
adults 25+
Poverty rate
6.3%
ACS 5-year
Unemployment
6.7%
civilian labor
Median age
40
21.5% under 18

Test scores in Middlesex County

Latest 2024-25 ELA proficiency, 177 schools ranked. New Jersey state average: 53.1%.

See all 177 schools in Middlesex County ranked by score →

All schools (214)

NameCityLevelGradesEnrollmentRating
Piscataway Regional Day SchoolPiscatawayCombined01-12119·
Academy Learning CenterMonroe TownshipCombinedPK-12113·
Dayton Elementary SchoolDaytonElementaryPK-PK110·
North Brunswick Twp Early Childhood CenterNorth BrunswickElementaryPK-PK106·
Roosevelt Preschool AnnexSouth PlainfieldElementaryPK-PK92·
New Brunswick Adult High SchoolNew BrunswickHigh09-1285·
Deans Elementary SchoolMonmouth JunctionElementaryPK-PK75·
Edison Early Learning CenterEdisonElementaryPK-KG52·
NuView AcademyPiscatawayCombinedKG-1246·
MIDDLESEX CO JDCNew BrunswickHigh06-120·
NEW JERSEY TRAINING SCHOOLJamesburgHigh08-120·
ADULT DIAGNOSTIC AND TREATMENT CENTERAvenelElementaryN-N··
Ford Avenue Elementary SchoolFordsCombinedM-M··
UMDNJ - CTRPiscatawayElementary04-05··

Cities in Middlesex County

Edison17 schoolsPiscataway14 schoolsEast Brunswick12 schoolsNew Brunswick12 schoolsPerth Amboy11 schoolsOld Bridge10 schoolsParlin8 schoolsSouth Plainfield8 schoolsColonia6 schoolsIselin6 schoolsNorth Brunswick6 schoolsCarteret5 schoolsMetuchen5 schoolsMiddlesex5 schoolsMonmouth Junction5 schoolsMonroe Township5 schoolsPlainsboro5 schoolsSouth River5 schoolsWoodbridge5 schoolsAvenel4 schoolsHighland Park4 schoolsKendall Park4 schoolsSpotswood4 schoolsDunellen3 schoolsEdison3 schoolsFords3 schoolsJamesburg3 schoolsNew Brunswick3 schoolsPerth Amboy3 schoolsPiscataway3 schoolsMonroe Twp2 schoolsNorth Brunswick2 schoolsSouth Amboy2 schoolsCarteret1 schoolCliffwood Beach1 schoolCranbury1 schoolDayton1 schoolDayton1 schoolEast Brunswick1 schoolFords1 schoolLaurence Harbor1 schoolMatawan1 schoolMatawan1 schoolMiddlesex1 schoolMilltown1 schoolMilltown1 schoolMonmouth Junction1 schoolMonroe Township1 schoolMonroe Twp1 schoolPort Reading1 schoolSayreville1 schoolSewaren1 schoolSouth Amboy1 schoolSouth Plainfield1 school

About Middlesex County

Across the sizable New Jersey county of Middlesex County of about 871,290 residents, the public-school footprint covers 214 schools and about 129,255 students.

Looking at the wider area, census numbers show the median household earns about $111,549 a year, 46% of adults hold a bachelor's degree or higher, and the federal-poverty share is near 6%. That income level is 8% noticeably above the New Jersey median.

In terms of grade levels, Middlesex County consists of 135 elementary schools (57,342 students), 40 middle schools (30,262), 33 high schools (41,060), and 6 combined or other schools.

The largest single district in Middlesex County is Edison Township School District, which alone enrolls about 16,617 students.

Over the past 7-year window. Across the same 7-year window, public-school enrollment held roughly steady: 131,236 students in SY 2017-18 versus 129,255 in SY 2024-25. Over that span, Middlesex County added 10 schools, going from 199 to 209. Demographically, the White share of enrollment decreased from 29% to 22%.

On allk12, the community for Middlesex County discusses school events, board meetings, and seasonal calendars. Anyone with firsthand knowledge of these schools is welcome to weigh in.

Frequently asked questions

How many K-12 schools serve Middlesex County?
There are 214 public K-12 schools in Middlesex County, New Jersey, with a combined enrollment of about 129,255.
How many high schools are in Middlesex County?
Middlesex County, New Jersey has 33 public high schools, serving approximately 41,060 students.
How many middle schools are in Middlesex County?
Middlesex County, New Jersey has 40 public middle schools, serving approximately 30,262 students.
How many elementary schools are in Middlesex County?
Middlesex County, New Jersey has 135 public elementary schools, serving approximately 57,342 students.
What is the largest school district in Middlesex County?
Edison Township School District is the largest school district in Middlesex County, serving approximately 16,617 students. The county contains 34 school districts overall.
What is the population of Middlesex County?
Middlesex County, New Jersey has a population of approximately 871,290, with a median age of 40. About 21.5% of residents are under 18.
What is the median household income in Middlesex County?
Median household income in Middlesex County is $111,549, above the New Jersey average of $103,339. About 6.3% of residents live below the federal poverty line.
How educated are residents of Middlesex County?
Approximately 45.6% of adults 25 and older in Middlesex County hold a bachelor's degree or higher, according to the Census ACS 5-year estimate.
What share of students in Middlesex County qualify for free or reduced lunch?
Roughly 42.4% of students in Middlesex County public schools qualify for free or reduced-price lunch, a common proxy for low-income enrollment. This is higher than the New Jersey county average of 41.8%.
What is the student-teacher ratio in Middlesex County schools?
Across Middlesex County public schools, the enrollment-weighted student-teacher ratio is approximately 12.3 to 1.

Middlesex County school rankings

Largest schoolsAll rankings →
DATA · Census ACS 5-year · NCES Common Core of Data