Original Research by School Decision on Plainfield High School
Plainfield High School is a large regular public high school in Union County, serving grades nine through twelve as part of the Plainfield Public School District. It is located on Park Avenue in the city of Plainfield, a densely populated municipality that functions both as a bedroom suburb of New York City and as an urban center for a cluster of nearby towns. The city has a traditional downtown anchored by an NJ Transit rail station on the Raritan Valley Line, and its commercial corridors sit alongside historic 18th-century buildings and dense residential neighborhoods. The population became majority Latino in the 2020 census, and the city reports a significant wave of redevelopment, with the mayor’s office describing over a billion dollars in new projects.
The high school enrolls a large student body. The student population is predominantly Hispanic, with a smaller share of Black students and very small numbers of White, Asian, and other racial or ethnic groups. A substantial majority of students qualify for free or reduced-price lunch, a common measure of economic need. Information on the share of students with disabilities or English learner status was not available in the data. No details on discipline rates, staffing ratios, or chronic absenteeism were reported either.
State assessment results and a four-year graduation rate were not present in the data for this school. Plainfield High School is a regular comprehensive high school that would normally participate in state testing and report a graduation rate, but those figures were not available for this profile. Comparisons to other Union County schools on proficiency, graduation, and chronic absenteeism could not be made for the same reason. A parent may want to contact the school or district directly for current academic performance information, including test scores and graduation outcomes.
The school sits within the Plainfield Public School District, which recently completed a major facilities project. In the past few years, a new elementary school building opened to replace two older schools, a project funded with state assistance. No other district-level changes were reported in the search results.
The housing market in Plainfield reflects a city in transition. Home values and rents are moderate relative to the broader region, and the city’s redevelopment efforts are reshaping commercial and residential areas. The city’s grid street pattern, a mix of historic Victorians and multifamily housing, and its downtown transit connections give it an urban feel for a suburban context. The local economy includes printing, chemicals, clothing, electronics, and vehicle parts manufacturing, alongside retail and public-sector employment from the school district and city government.
Because academic outcome data was missing, this profile cannot characterize how Plainfield High School compares to other high schools in the area on measures like test proficiency or graduation. What is clear is the size of the school, the socioeconomic background of its students, and the community context of a city experiencing demographic and economic change. Families considering this school may wish to request its most recent state report card or speak with school administrators about current programs, including advanced coursework, career pathways, and support services, which were not detailed in the available information.
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