At a glance
These measures follow the same rule on every school page, not a ranking of this school’s biggest changes. Each row names its evidence dates; trend rows do not describe every year in between.
Fall enrollment was 394 students in 2015-16 and 439 students in 2016-17 — 45 more students.
See enrollment evidence →The chronic-absence rate was 7.3% in 2015-16 and 11.7% in 2016-17 — 4.4 percentage points higher.
See attendance evidence →These are descriptive measures from statewide NJDOE datasets, not a quality rating or an explanation of cause. Proficiency, attendance, and graduation figures use All Students; subgroup patterns may differ.
In its last year on record, 2016-17, it enrolled 439 students across grades 4–6. Enrollment was roughly steady since 1998-99 (432). It peaked at 534 in 1999-00. Its biggest cohort is grade 4.
Students enrolled in each grade each fall, stacked to the total — so the top edge is total enrollment. Bands run from the lowest grade (light) to the highest (dark); a band that appears or disappears is a grade the school added or dropped. “Other” is students with no grade level (mostly special education), so the bands always sum to total. Source: NJDOE Fall Enrollment.
The largest group in both 1998-99 and 2016-17 was White students — 99% then, 71% now.
Each group’s share of enrollment over time, or its head count — toggle above. New Jersey expanded race and ethnicity reporting from five to seven categories in 2006-07 (dashed line), so “two or more races” appears only after; Asian here includes Pacific Islander. Source: NJDOE Fall Enrollment.
Between 2012-13 and 2016-17 the makeup of this school shifted noticeably.
The index is half the sum of every group’s change in share, on a 0–100 scale (how it works). It is computed from the same counts as the makeup chart above — source: NJDOE Fall Enrollment. Compare any two years in the explorer →
In 2016-17, 76.5% of students were certified for free or reduced-price lunch.
Share of students certified for free or reduced-price meals, through a household application or an automatic match. The lighter lines show the district overall and Cold Springs School, for comparison. Some districts serve free meals to every student under the Community Eligibility Provision. Those districts often stop collecting household income forms, so their reported share can run below the number of low-income students they enroll. Source: NJDOE Fall Enrollment.
In 2016-17, 11.7% of students were chronically absent — missing at least 10% of school days — up from 7.3% in 2015-16.
Chronic absenteeism — the share of students who missed 10% or more of the days they were enrolled (roughly 18 days across a full school year). The lighter line shows the district overall, for comparison. Points from 2016-17 and earlier are matched to this school by its state code; New Jersey’s organization record only reaches back to 2020-08-11, so for those years the code is verified and the identity behind it is not. Source: NJ School Performance Reports, 2015-16 through 2024-25.
2016-17 · the ESSA record
New Jersey has published a summative rating for Mary Ethel Costello School in one school year under ESSA. The rating is a percentile inside a group of schools NJDOE considers comparable — where the school placed among them, not a score and not a grade.
There is one rating here, for 2016-17. One rating is a reading, not a direction.
The long numbers are NJDOE’s own. It rounded the summative score in the 2016-17 preliminary edition, stopped rounding for the 2016-17 final through 2018-19, and rounded again from 2021-22 on. This page prints what each edition printed and shortens nothing.
| School year | Percentile in group | Summative score | NJDOE’s group | Identification |
|---|---|---|---|---|
| 2016-17 final | 18.529411764705884 | 29.703409293672387 | ES/MS | No comprehensive or targeted status published for this school |
| NJDOE published 2016-17 twice. The preliminary edition below measures the same school year as the final one above it, with seven indicators instead of eight — Progress toward ELP was, in the state’s January 2018 words, “not yet available”. Every one of the 2,105 summative scores moved between the two. It is one year, not two, and the preliminary edition is comparable with nothing. | ||||
| 2016-17 preliminary | 19.35 | 29.7 | Elementary | No comprehensive or targeted status published for this school |
Profile built from New Jersey Department of Education Fall Enrollment data, 1998-99 through 2025-26. How this data works →
