Compiled from official source data by PlainSchools.
19 public K-12 schools in Plainfield from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
According to NCES CCD 2024-25, Plainfield has more public-school enrollment than 83% of the 4,487 US cities in this directory. Plainfield's average Resource Investment Index falls in the lower portion of the 4,487-city comparison set. The index is a resource snapshot, not an academic grade: it reflects the federal staffing, counselor, gifted-program, and attendance fields available for local campuses. The most useful next step is to open the individual schools below and identify which component is pulling each score down, because the same city average can hide very different campus-level constraints.
Combined-grade campuses shape the local portfolio
8 of Plainfield's 19 listed schools use NCES's combined or “other” grade-level classification. Citywide averages therefore blend campuses serving unusually broad or nonstandard grade spans with conventional elementary, middle, and high schools. Grade configuration is a first-order comparison here, not a minor label.
Governance mix is central to a fair comparison
5 of 19 listed Plainfield campuses are reported as charters, so district-run and charter records occupy substantial shares of the same city view. They may follow different governance, enrollment, and program structures even when their mailing city matches. The 58-point gap between Plainfield Academy for the Arts & Advanced Studies and Pinnacle Academy High School should be read within that context, not as a single-system league table. Check charter status and district affiliation before comparing two nearby schools, and verify current admissions rules with the operator.
City enrollment
Top 17%
School count
Top 16%
Resource Index average
22nd percentile
Teacher staffing
51st percentile
Plainfield High School accounts for 19.0% of all Plainfield public-school enrollment
That concentration means Plainfield-wide averages can mask substantial variation outside the largest entity. Grade level: High. The share measures enrollment concentration only; it does not establish how districts allocate programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.
Plainfield school enrollment varies 31× across entities
Plainfield school enrollment ranges from 67 students (lowest) to 2,077 students (highest), a spread of 2,010 students. That ratio is among the widest observed and reflects extreme heterogeneity inside a single city, with small specialty programs listed alongside large comprehensive campuses. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.
The reported share sits between 62.5% and 75%, above a simple majority but below the highest descriptive band used here. Title I operates under the Every Student Succeeds Act (ESSA, 2015), but its statutory allocation uses additional LEA-level counts and rules not represented by this average. This percentage is an economic-need context measure; it does not establish a Title I award, show dollars received, or describe how funds are distributed among campuses.
Plainfield operates 6 school districts — among the most fragmented governance structures in the country
Each school district has independent budgeting, hiring, and service delivery authority. The fragmentation reflects historical patterns of inter-municipal boundary lines that pre-date modern city growth, students in different parts of the same city can attend different districts with different per-pupil spending, calendars, and graduation requirements. Per-region variation is largest in fragmented systems because each school district sets its own budget, contracts, and priorities without higher-level coordination above the regulatory floor.
Plainfield student-teacher ratio is 15.3:1 — near the typical range (US average ~15.7) — citywide staffing is neither unusually lean nor unusually crowded by this measure
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Variation between sub-units within Plainfield is typically wider than the Plainfield-aggregate figure suggests.
26% of the city's listed public-school campuses are reported as charter schools in NCES CCD. Charter status identifies a different governance arrangement; it does not establish admissions availability, academic quality, or the share of city students enrolled in those campuses. Open each school record to compare enrollment and staffing directly.
Most racially and ethnically mixed schools in Plainfield
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
Which Plainfield school has the highest Resource Investment Index? ▼
Plainfield Academy for the Arts & Advanced Studies has the highest Resource Investment Index among the Plainfield schools in this federal-data comparison at 58/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.
How many schools are in Plainfield, NJ? ▼
Plainfield has 19 public schools with a total enrollment of 10,939 students. 5 are charter schools. Average student-teacher ratio: 15.3:1.
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio,
counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes:
verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.
