Exactly one NYC public school is 90%+ Black — but 54 are 90%+ Hispanic
A reproducibility log: the data this analysis touched, the queries it ran, the outside sources it leaned on, and the steps a third party would follow to re-run it.
Summary
Pulled per-school demographic composition (pct_black, pct_hispanic, pct_white, pct_asian); filtered to schools where any single race share ≥ 90%; counted by race category.
Data sources
- Database tableschools
One row per New York City public school (DBN, name, district, borough, school_type, grade_band, latest_enrollment, proclivity_decile, proclivity_score, closed_at, admission_category).
- Database tableschool_year_metrics
Long-format per-school per-year metric facts (school_dbn, year, metric_key, subgroup, value, suppressed). Loaded from DOE/NYSED public files via scripts/loaders/*.
Steps
SELECT WHERE pct_black >= 90 (and similar for other groups) at the 2024-25 snapshot.
Also count schools where pct_black + pct_hispanic >= 90 (combined-minority concentration).
Caveats
Demographic-share data is from the 2024-25 snapshot; year-by-year shifts are common. The single-90%+ Black school finding is robust across recent years.
References
Reproduce
Clone the repo, set DATABASE_URL to a Postgres with the project schema loaded, run `npx tsx scripts/loaders/<source>.ts` for any not-yet-loaded data, then issue the queries in the Steps section. The story page also lists the exact `metric_key`/`subgroup`/`year` filters used. Searchable by the answer's headline number — every figure is recomputable from the queries shown.
The recipe lives at data/stories/recipes.ts in the repo. Corrections welcome.