Colonia High School is a four-year comprehensive public high school that serves students in ninth through twelfth grades in the Colonia section of Woodbridge Township in Middlesex County, in the U.S. state of New Jersey.
Serving 1,354 students in grades 9-12, Colonia High School ranks in the bottom 50% of all schools in New Jersey for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 17% (which is lower than the New Jersey state average of 38%). The percentage of students achieving proficiency in reading/language arts is 38% (which is lower than the New Jersey state average of 49%).
The student-teacher ratio of 11:1 is equal to the New Jersey state level of 11:1.
Minority enrollment is 61% of the student body (majority Hispanic and Asian), which is lower than the New Jersey state average of 63% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 1,354 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 61%
- Graduation Rate: 94% (Top 50% in NJ)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 17% (Btm 50%)
- Reading Proficiency: 38% (Btm 50%)
- Science Proficiency: 22% (Top 50%)
- Attendance Zone: Colonia High School serves the northern part of its school district in Colonia, NJ, covering an area of approximately 7 square miles. Families within this zone can typically expect a short drive of 5 to 10 minutes to reach the school, with an average distance of 2.5 miles from the school to the edge of the zone, and the furthest boundary located about 4 miles away.
- Source: National Center for Education Statistics (NCES), NJ Dept. of Education
School Overview
Colonia High School's student population of 1,354 students has stayed relatively flat over five school years.
The teacher population of 122 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,354 students
Total Classroom Teachers
122 teachers
Year Founded
1967
School Calendar
School Rankings
Colonia High School ranks within the bottom 50% of all 2,184 schools in New Jersey (based off of combined math and reading proficiency testing data).
The diversity score of Colonia High School is 0.73, which is more than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1676 out of 2184 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
17%
38%
Reading/Language Arts Test Scores (% Proficient)
38%
49%
Science Test Scores (% Proficient)
22%
23%
Student-Teacher Ratio
11:1
11:1
Asian
17%
11%
Hispanic
27%
35%
Black
15%
14%
White
39%
37%
Two or more races
2%
3%
All Ethnic Groups
Graduation Rate
94%
90.5%
Chronically Absent Students
(22-23)12.8%
16.7%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
34%
38%
Eligible for Reduced Lunch
9%
5%
School Statewide Testing
School District Name
Sports
Colors
Patriots Colors
School Mascot
The Patriot
Source: National Center for Education Statistics (NCES), NJ Dept. of Education
Frequently Asked Questions
What is Colonia High School's ranking?
Colonia High School is ranked #1676 out of 2,184 schools, which ranks it among the bottom 50% of public schools in New Jersey.
What schools are Colonia High School often compared to?
Colonia High Schoolis often viewed alongside schools like Woodbridge High School, John F. Kennedy Memorial High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
17% of students have achieved math proficiency (compared to the 38% NJ state average), while 38% of students have achieved reading proficiency (compared to the 49% NJ state average).
What is the graduation rate of Colonia High School?
The graduation rate of Colonia High School is 94%, which is higher than the New Jersey state average of 90.5%.
How many students attend Colonia High School?
1,354 students attend Colonia High School.
What is the racial composition of the student body?
39% of Colonia High School students are White, 27% of students are Hispanic, 17% of students are Asian, 15% of students are Black, and 2% of students are Two or more races.
What is the student-teacher ratio of Colonia High School?
Colonia High School has a student ration of 11:1, which is equal to the New Jersey state average of 11:1.
What grades does Colonia High School offer ?
Colonia High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Colonia High School part of?
Colonia High School is part of Woodbridge Township School District.
School Reviews
Review Colonia High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
When Your Child Gets a Teacher You Didn't Request
Learn what parents can do when a child is assigned to an unexpected teacher, including when to wait, communicate, document concerns, request support, and seek reassignment appropriately.
Before Accepting a Public School Seat: 15 Checks
Before accepting a public school seat, parents should verify enrollment terms, transportation, staffing, academics, safety, support services, schedules, attendance rules, extracurriculars, costs, and long-term placement details carefully.
Will This Public School Offer the Same Programs Next Year?
Learn how parents can determine whether public school programs will continue next year by checking budgets, enrollment, staffing, board documents, grants, course schedules, and district priorities before enrolling.
