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Coverage

56,681 of 56,681 columns decided — 100.0% · 12,642 bound (22.3%) · 0 still unread

Bound: 12,642; 22.3%; a concept was found and asserted for the column.
Refused: 32,953; 58.1%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 11,086; 19.6%; read, but the evidence did not settle it.
Unanalysed: 0; 0.0%; nobody has read this column yet.

56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 9:25 PM

Where the unread columns are

3,026 datasets, 56,681 catalogued fields, 0 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.

Gaps in the data behind this page

603 of the 3,026 datasets in the catalog list no columns at all.

Source last observed Oct 10, 2026, 9:25 PM.

Where each note comes from

603 of the 3,026 datasets in the catalog list no columns at all.
603 / 3,026
Source: /api/field-coverage
Check it yourself: /api/field-coverage#/catalog/datasets_no_inventory

These pages state their own gaps: /datasets, /freshness, /scorecard, /scorecard/fields, /analyses, /ontology, /graph, /alerts, any topic page under /domains.

What we have understood

Freshness above is about the data being current. This is about the data being understood: how many of the catalogue's fields carry a meaning we can act on, which datasets are still waiting, and how far the joinable web reaches.

← Citywide scorecard

Datasets by how much of them we have read

Filtered to datasets carrying school_district. Clear

Datasets with the most fields left to read

Showing 1–31 of 31
Dataset	Fields	Decided	Understood	Shared terms
2020 DOE Middle School Directory fdpt-nzk4	464	464 100%	22	6	See every field
2019 DOE Middle School Directory uqxv-h2se	251	251 100%	18	6	See every field
Primary Land Use Tax Lot Output (PLUTO) 64uk-42ks	108	108 100%	41	5	See every field
2018 Pre-K School Directory xck4-5xd5	85	85 100%	20	5	See every field
DOE High School Directory 2013-2014 u553-m549	82	82 100%	18	7	See every field
Suitability of City-Owned and Leased Property for Urban Agriculture (LL 48 of 2011) 4e2n-s75z	75	75 100%	32	7	See every field
Housing Database Project Level Files br6q-ssj3	68	68 100%	25	6	See every field
Atomic Polygons wgbs-damt	30	30 100%	3	3	See every field
Capacity Supporting Transportable Classroom Units (TCU) Removals 32rn-zwi7	25	25 100%	15	8	See every field
Early Learn Project Sites vmfm-wic2	24	24 100%	13	8	See every field
Bronx Borough President Capital Funding mdgu-ar69	20	20 100%	14	7	See every field
Class Size Report Detail Summary (2010-2015) nbpb-zygj	18	18 100%	11	2	See every field
Average Class Size 2017-2019 (Preliminary) cfuy-6eha	16	16 100%	11	1	See every field
2009 - 2010 Class Size - School-level Detail d3ge-anaz	16	16 100%	8	2	See every field
2013-2015 School Closure Discharge Reporting r773-ytwa	15	15 100%	12	2	See every field
Class Size Report Distribution Summary (2010-2015) 9ksk-35jf	12	12 100%	8	2	See every field
2015-2018 School Closure Discharge Reporting abh8-frsx	11	11 100%	9	2	See every field
2020 Fall Admission LL1486 5f9p-h9ar	10	10 100%	1	1	See every field
2018-2019 Students, Applications, Admissions & Offers LL72 evir-bydt	10	10 100%	1	1	See every field
SY2021 Local Law 60 Annual Report ix3t-6s7r	10	10 100%	4	3	See every field
2021 Fall Admission LL1486 naa7-pasa	10	10 100%	1	1	See every field
SY2017-2018 Local Law 60 Annual Report urz8-dybm	10	10 100%	4	3	See every field
2016 - 2017 Local Law 60 Bathroom& Non- Instructional Space wrvm-32h2	10	10 100%	3	3	See every field
2019 Fall Admissions LL1486 xt7f-mv4x	10	10 100%	1	1	See every field
School Bus Route Reporting April2020_21_996 - July 1, - December 31, 2019 s6qk-qkvb	9	9 100%	3	1	See every field
Students Receiving Recommended Special Education Programs by Program Type 6thv-9wgt	8	8 100%	2	1	See every field
2018-2019 Career and Technical Education Report Law 174 8vqd-3345	8	8 100%	3	1	See every field
Projected Public School Ratio n7ta-pz8k	6	6 100%	1	1	See every field
2019 Fall Admission LL1486 Part II 9b3x-yz6y	5	5 100%	2	1	See every field
Fall 2020 Admissions Report LL1486-A Part II w99a-xtai	5	5 100%	2	1	See every field
School Districts 8ugf-3d8u	4	4 100%	1	1	See every field

The web of datasets and fields

A line means a dataset carries a field tagged with a shared vocabulary term. Two datasets on the same term speak the same language about it, which is what makes a cross-dataset question possible. Sharing a term is not the same as a working join — the dataset page says whether a specific pair compiles.

Bipartite. A dimension node is a conformed-dimension family; a dataset node is a catalog dataset; an edge means that dataset carries at least one column tagged with that dimension, and names the columns that carry it.

No field list yet: We hold no columns for these at all.
Nothing read yet: We hold their columns and have decided none of them.
Under half read: Fewer than half their fields carry a verdict.
Half read: At least half their fields carry a verdict.
Most read: At least three quarters of their fields carry a verdict.
Every field decided: Every field carries a verdict — which does not mean every field is understood.

How many of an edge's tagging columns carry a method that actually read something. Zero means the edge rests entirely on carried lexical tags.

Two datasets on the same dimension node share a vocabulary, which is weaker than a join. GET /api/datasets/{fourFour}/bindings/{partner} decides whether a specific pair compiles; executing it additionally needs both marts present.