South Plainfield High School

Set in SOUTH PLAINFIELD, New Jersey, South Plainfield High School is a middle-of-the-pack secondary school, run under South Plainfield School District. It teaches 1,044 students across grades 9 through 12.

South Plainfield School District comprises 9 schools with combined enrollment of 3,767 students; South Plainfield High School is among them.

Demographically, South Plainfield High School shows that 37% of students identify as Hispanic, with the remaining enrollment distributed across several groups. Beyond that, the school lists 33% White, 14% Asian, 13% Black. The wider county runs roughly 24% Hispanic, putting the school's mix noticeably more Hispanic than the area baseline.

Looking at school resources, On paper, South Plainfield High School has 93 full-time-equivalent teachers, translating to a class-load average of around 11.2:1. The state averages around 12.7:1, so this campus is tighter than the state norm typical. Around 36% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment.

Adjusting for the school's free-and-reduced-lunch share, South Plainfield High School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 46.3%; this one delivers 39.8%.

Zooming out to the county, the surrounding county (Middlesex County) reports that the typical household earns roughly $111,549 per year, about 46% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 6%. Across Middlesex County's 214 public schools (combined enrollment of about 129,255 students), South Plainfield High School is one campus in the mix.

Grant Elementary School is the nearest neighboring public school, about 0.1 miles from this campus. Within five miles, there are 8 other public schools. On composite proficiency, South Plainfield High School comes 5th of 7 in the immediate cluster, beneath the nearby-schools average of 40.8%.

Geographically, the school is in a suburban area.

Over the past 7-year window. Looking back 7 years, enrollment at South Plainfield High School has stayed largely flat, going from 1,029 students in 2018 to 1,044 in 2025. The Hispanic share of enrollment edged up from 26% to 37% over that span. Class-load math has narrowed: from 13.5:1 in 2018 to 11.2:1 in 2025.

In the discussion threads here, posts here usually surface around enrollment questions, classroom assignments, and PTA news. Members of the school community can share what they know.