Colonia High School

Colonia High School is one of the mid-tier senior highs in COLONIA, New Jersey, one of the schools within Woodbridge Township School District, with 1,354 students on its rolls from grades 9 through 12. By comparison, New Jersey's public schools average about 929 students each, so Colonia High School sits 46% above that benchmark.

Woodbridge Township School District runs 24 schools in total, collectively educating 13,869 students. Colonia High School is one of those campuses.

On demographics, Colonia High School records that the most-represented group is White (39%), with the rest of the student body spread across multiple groups. Other groups include 27% Hispanic, 17% Asian, 16% Black. Compared to Middlesex County overall, the school's racial mix sits in roughly the same range.

Looking at the economic backdrop, Staff filings list 122 full-time-equivalent teachers, which works out to roughly 11.1:1 students per teacher. The state averages around 12.7:1, so this campus is tighter than the state norm typical. About 42% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

On a demographically-adjusted basis, On a poverty-adjusted basis, Colonia High School sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 43.1%; actual is 24.1%, a gap of -19.0 points.

Zooming out to the county, ACS estimates for Middlesex County put the typical household earns roughly $111,549 per year, roughly 46% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. In all, Middlesex County runs 214 public schools (combined enrollment of about 129,255 students), of which Colonia High School is one.

The closest other public school is Lynn Crest Elementary School, roughly 0.6 miles away. Counting just inside five miles, 8 other public schools cluster around Colonia High School. Among the 8 schools in that immediate cluster with test data (this one included), Colonia High School ranks 8th on composite proficiency, behind the local average of 54.1%.

The campus sits in an outer-ring setting.

Over the past 7-year window. Over the past 7-year window, the student count held roughly steady: 1,358 students in 2018 compared to 1,354 in 2025. Over the same period, the White share shrank from 52% to 39%.

In the discussion threads here, the feed for Colonia High School typically covers school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.