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Coverage

46,873 of 56,681 columns decided — 82.7% · 9,148 bound (16.1%) · 9,808 still unread

Bound: 9,148; 16.1%; a concept was found and asserted for the column.
Refused: 29,070; 51.3%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 8,655; 15.3%; read, but the evidence did not settle it.
Unanalysed: 9,808; 17.3%; 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, 7:21 PM

Where the unread columns are

3,026 datasets, 56,681 catalogued fields, 9,808 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

9,808 of the 56,681 columns in the coverage ledger have never been analysed.
603 of the 3,026 datasets in the catalog list no columns at all.

Source last observed Oct 10, 2026, 7:21 PM.

Where each note comes from

9,808 of the 56,681 columns in the coverage ledger have never been analysed.
9,808 / 56,681
Source: /api/field-coverage
Check it yourself: /api/field-coverage#/coverage/unanalysed
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 borough. Clear

Datasets with the most fields left to read

Showing 101–150 of 555
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
DOF: Condominium comparable rental income – Bronx - FY 2010/2011 bawj-6bgn	46	39 85%	9	7	5	See every field
DOF: Condominium Comparable Rental Income – Queens – FY 2009/2010 crbs-vur7	46	39 85%	9	7	5	See every field
DOF: Condominium comparable rental income – Manhattan - FY 2010/2011 ikqj-pyhc	46	39 85%	8	7	4	See every field
DOF: Condominium Comparable Rental Income – Bronx – FY 2009/2010 n2s5-fumm	46	39 85%	9	7	5	See every field
Property Valuation and Assessment Data yjxr-fw8i	45	38 84%	7	7	4	See every field
Housing Maintenance Code Violations wvxf-dwi5	41	34 83%	16	7	3	See every field
Facilities Database ji82-xba5	38	31 82%	17	7	4	See every field
DOHMH Childcare Center Inspections (Historical) dsg6-ifza	34	27 79%	11	7	3	See every field
LinkNYC New Site Permit Applications xp25-gxux	34	27 79%	13	7	4	See every field
LPC Permit Application Information dpm2-m9mq	32	25 78%	6	7	1	See every field
Open Market Order (OMO) Charges mdbu-nrqn	32	25 78%	5	7	3	See every field
Weights, Measures, and Other Tests 8fei-z6rz	31	24 77%	9	7	5	See every field
DOB Certificate Of Occupancy bs8b-p36w	30	23 77%	9	7	3	See every field
Motor Vehicle Collisions - Crashes h9gi-nx95	29	22 76%	10	7	1	See every field
Fee Charges cp6j-7bjj	27	20 74%	9	7	4	See every field
Encroachments and Defacements kyvb-rbwd	25	18 72%	3	7	1	See every field
Local Law 159 of 2019: Vacate Relocation Charges By Building 3bkg-usya	23	16 70%	11	7	7	See every field
DCM_StreetNameChanges_Lines nsqj-6wg3	23	16 70%	2	7	1	See every field
"Kids In Motion" Playground Programming: 2016 to 2021 8p6c-94pc	12	5 42%	3	7	1	See every field
Housing Database Project Level Files br6q-ssj3	68	62 91%	23	6	6	See every field
Forestry Service Requests mu46-p9is	51	45 88%	12	6	2	See every field
NYPD Complaint Data Current (Year To Date) 5uac-w243	41	35 85%	13	6	2	See every field
Asbestos Control Program (ACP7) vq35-j9qm	35	29 83%	10	6	3	See every field
NYC Wi-Fi Hotspot Locations yjub-udmw	34	28 82%	15	6	5	See every field
Storefronts Reported Vacant or Not 92iy-9c3n	31	25 81%	8	6	2	See every field
City Bench Locations (Historical) kuxa-tauh	31	25 81%	9	6	2	See every field
Street and Highway Capital Reconstruction Projects - Intersection 97nd-ff3i	30	24 80%	10	6	2	See every field
Real Time Passenger Information Sign Locations g9jx-npbk	30	24 80%	8	6	3	See every field
2017 - 2018 Schools NYPD Crime Data Report kwvk-z7i9	30	24 80%	2	6	1	See every field
ARCHIVED_NYPD Shooting Incident Data (Year To Date) 98wc-x49t	26	20 77%	10	6	2	See every field
Broadband Adoption Basic Indicators 6wy6-6agj	25	19 76%	1	6	1	See every field
Cooking Gas Consumption And Cost (2010 - Sep 2025) avhb-5jhc	25	19 76%	4	6	1	See every field
New York City Bike Routes mzxg-pwib	25	19 76%	3	6	1	See every field
WalkNYC Sign Locations ns8x-qshd	23	17 74%	6	6	1	See every field
DCM_StreetNameChanges_Areas qyv6-5ipu	23	17 74%	2	6	1	See every field
Queens Community Board District Managers and Chairs 8z5h-tzdr	20	14 70%	5	6	4	See every field
Construction-Related Incidents bf97-mjsy	20	14 70%	12	6	3	See every field
Bronx Borough President Capital Funding mdgu-ar69	20	14 70%	12	6	7	See every field
Manhattan Community Grants - Historical rsnd-bbih	20	14 70%	5	6	3	See every field
Mapped In NY Companies f4yq-wry5	19	13 68%	4	6	4	See every field
Class Size Report Detail Summary (2010-2015) nbpb-zygj	18	12 67%	6	6	2	See every field
ENDGBV: The Intersection of Domestic Violence, Race/Ethnicity and Sex 2rb7-7eqa	15	9 60%	3	6	2	See every field
PE Report x4sg-2jca	14	8 57%	4	6	1	See every field
DOF: Cooperative Comparable Rental Income – Brooklyn – FY 2011/2012 irhv-jqz7	69	64 93%	5	5	3	See every field
2005 Street Tree Census 29bw-z7pj	59	54 92%	12	5	3	See every field
Forestry Planting Spaces 82zj-84is	40	35 88%	6	5	2	See every field
NYPD Complaint Data Historic qgea-i56i	40	35 88%	13	5	2	See every field
DOB NOW: Safety – Facades Compliance Filings xubg-57si	40	35 88%	6	5	2	See every field
Open Restaurant Applications (Historical) pitm-atqc	35	30 86%	7	5	3	See every field
DCWP Consumer Complaints nre2-6m2s	33	28 85%	9	5	4	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.