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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, 6:30 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, 6:30 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 council_district. Clear

Datasets with the most fields left to read

Showing 51–100 of 293
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
LinkNYC Kiosk Status (Historical) quxm-hmyr	35	25 71%	13	10	7	See every field
EMS Incident Dispatch Data 76xm-jjuj	31	21 68%	5	10	2	See every field
DOB After Hour Variance Permits g76y-dcqj	24	14 58%	6	10	3	See every field
DOHMH Indoor Environmental Complaints 9jgj-bmct	19	9 47%	5	10	4	See every field
2018 Pre-K School Directory xck4-5xd5	85	76 89%	17	9	5	See every field
DOF: Condominium Comparable Rental Income –Manhattan – FY 2008/2009 956m-xy24	46	37 80%	8	9	4	See every field
1995 Street Tree Census kyad-zm4j	35	26 74%	7	9	3	See every field
Archived DCWP Charges wyj6-frpa	31	22 71%	9	9	4	See every field
Sidewalk Dismissal Inspection Tracking p4u2-3jgx	29	20 69%	7	9	4	See every field
LinkNYC Kiosk Status (Archived) 8s5k-n45n	25	16 64%	7	9	4	See every field
Mobile Telecommunications Franchise Pole Reservation Locations tbgj-tdd6	23	14 61%	10	9	3	See every field
Suitability of City-Owned and Leased Property for Urban Agriculture (LL 48 of 2011) 4e2n-s75z	75	67 89%	27	8	7	See every field
Privately Owned Public Spaces (POPS) rvih-nhyn	39	31 79%	11	8	5	See every field
LinkNYC Kiosk Locations s4kf-3yrf	28	20 71%	12	8	5	See every field
Open Restaurants Inspections (Historical) 4dx7-axux	20	12 60%	6	8	3	See every field
2016 DOE High School Directory 7crd-d9xh	67	60 90%	8	7	5	See every field
DOF: Condominium comparable rental income – Brooklyn - FY 2010/2011 5mw2-hzqx	46	39 85%	8	7	4	See every field
DOF: Condominium Comparable Rental Income – Manhattan – FY 2009/2010 ad4c-mphb	46	39 85%	8	7	4	See every field
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
LinkNYC New Site Permit Applications xp25-gxux	34	27 79%	13	7	4	See every field
Open Market Order (OMO) Charges mdbu-nrqn	32	25 78%	5	7	3	See every field
DOB Certificate Of Occupancy bs8b-p36w	30	23 77%	9	7	3	See every field
Fee Charges cp6j-7bjj	27	20 74%	9	7	4	See every field
Local Law 159 of 2019: Vacate Relocation Charges By Building 3bkg-usya	23	16 70%	11	7	7	See every field
2021 DOE Middle School Directory f6s7-vytj	327	321 98%	24	6	5	See every field
Housing Database Project Level Files br6q-ssj3	68	62 91%	23	6	6	See every field
Asbestos Control Program (ACP7) vq35-j9qm	35	29 83%	10	6	3	See every field
Designated and Calendared Buildings and Sites ncre-qhxs	34	28 82%	11	6	2	See every field
NYC Wi-Fi Hotspot Locations yjub-udmw	34	28 82%	15	6	5	See every field
Real Time Passenger Information Sign Locations g9jx-npbk	30	24 80%	8	6	3	See every field
Grant Applications Tracking Table 97zg-4p9t	22	16 73%	9	6	4	See every field
Queens Community Board District Managers and Chairs 8z5h-tzdr	20	14 70%	5	6	4	See every field
Bronx Borough President Capital Funding mdgu-ar69	20	14 70%	12	6	7	See every field
Mapped In NY Companies f4yq-wry5	19	13 68%	4	6	4	See every field
Jobs Created by Energy Cost Savings Program Savings for Businesses yqky-aebb	17	11 65%	7	6	5	See every field
Off-Year and Special Elections Public Matching Fund Payments 7f4s-uwi7	12	6 50%	3	6	1	See every field
Campaign Public Funds Payments u69g-mvrb	12	6 50%	3	6	1	See every field
Open Restaurant Applications (Historical) pitm-atqc	35	30 86%	7	5	3	See every field
Handyman Work Order (HWO) Charges sbnd-xujn	32	27 84%	12	5	4	See every field
NYC Citywide Annualized Calendar Sales Update w2pb-icbu	29	24 83%	11	5	6	See every field
LockerNYC Reservations inb9-u6nt	28	23 82%	11	5	5	See every field
Register of Community Board Budget Requests vn4m-mk4t	26	21 81%	10	5	7	See every field
485-x Affordable Neighborhoods for New Yorkers: Registrations of Prospective Applicants for Tax Benefits rrtd-iyd7	25	20 80%	10	5	4	See every field
DOB Safety Violations 855j-jady	24	19 79%	10	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.