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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 12, 2026, 4:39 AM
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.
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.
Filtered to datasets carrying borough. Clear
| Dataset | Fields | Decided | Understood | Nobody looked | Shared terms | |
|---|---|---|---|---|---|---|
| Licensed Wholesale Cigarette Dealers 98b7-th5j | 18 | 18 100% | 12 | 0 | 6 | See every field |
| Landmarks Complaints ck4n-5h6x | 18 | 18 100% | 9 | 0 | 3 | See every field |
| Inclusionary Housing Properties cm6g-t7ye | 18 | 18 100% | 11 | 0 | 4 | See every field |
| Parking Meters - ParkNYC Block Faces e7yp-wx55 | 18 | 18 100% | 2 | 0 | 1 | See every field |
| Ready NY Events hyur-qpyf | 18 | 18 100% | 11 | 0 | 5 | See every field |
| NYC Honorary Street Names Map (Intersection) ig76-wwag | 18 | 18 100% | 6 | 0 | 1 | See every field |
| Class Size Report Detail Summary (2010-2015) nbpb-zygj | 18 | 18 100% | 11 | 0 | 2 | See every field |
| Bureau of Fire Prevention - Certificates of Fitness (Historical) pdiy-9ae5 | 18 | 18 100% | 9 | 0 | 4 | See every field |
| TAX_LOT_FACE sif6-3bej | 18 | 18 100% | 3 | 0 | 1 | See every field |
| Bus Stop Shelters t4f2-8md7 | 18 | 18 100% | 6 | 0 | 1 | See every field |
| Court Liaison Contact Sheet tsy7-gcm8 | 18 | 18 100% | 9 | 0 | 4 | See every field |
| Carshare Locations - Curbside wkij-g2bh | 18 | 18 100% | 8 | 0 | 1 | See every field |
| Department of Probation (DOP) Annual Adult Cases xsj8-452q | 18 | 18 100% | 2 | 0 | 1 | See every field |
| DSNY Garages xw3j-2yxf | 18 | 18 100% | 7 | 0 | 5 | See every field |
| DCAS Managed Building Fuel Usage (Historical) 56u5-n9sa | 17 | 17 100% | 8 | 0 | 4 | See every field |
| Recurring Resident Economic Empowerment and Sustainability Programs 7su9-xgtn | 17 | 17 100% | 7 | 0 | 4 | See every field |
| DCM_StreetCenterLine g6zj-tzgn | 17 | 17 100% | 6 | 0 | 1 | See every field |
| Buildings Selected for the Heat Sensor Program (HSP) h4mf-f24e | 17 | 17 100% | 7 | 0 | 5 | See every field |
| Curb Metal Protruding Data i2y3-sx2e | 17 | 17 100% | 1 | 0 | 1 | See every field |
| Risk Based Inspections (RBIS) itd7-gx3g | 17 | 17 100% | 6 | 0 | 3 | See every field |
| ACRIS - Personal Property Master sv7x-dduq | 17 | 17 100% | 5 | 0 | 1 | See every field |
| DCAS Managed Building Energy Usage ubdi-jgw2 | 17 | 17 100% | 8 | 0 | 4 | See every field |
| Newsstands w9zq-xm8b | 17 | 17 100% | 7 | 0 | 1 | See every field |
| Local Law 161 Summons Issued by Peace Officers at Benefits Access Centers and SNAP Centers wn4z-dw55 | 17 | 17 100% | 15 | 0 | 7 | See every field |
| Directory of Family Justice Centers xggi-kgx9 | 17 | 17 100% | 6 | 0 | 3 | See every field |
| 2015-2016 Physical Education - PE Space xqmg-7z3j | 17 | 17 100% | 8 | 0 | 1 | See every field |
| DSNY Special Waste Drop-off Sites 242c-ru4i | 16 | 16 100% | 5 | 0 | 3 | See every field |
| Department of Probation (DOP) Annual Juvenile Cases 5dfs-vnre | 16 | 16 100% | 5 | 0 | 1 | See every field |
| Small Business Services (SBS) Equal Employment Opportunity (EO 50) Certified Businesses 5vi6-xdpy | 16 | 16 100% | 12 | 0 | 6 | See every field |
| Local Law 161 Arrests by Peace Officers at Benefits Access Centers and SNAP Centers 7wa7-cvt5 | 16 | 16 100% | 8 | 0 | 3 | See every field |
| Industrial & Commercial Abatement Program (ICAP) Businesses that received EO50 certificate of approval from SBS 9a87-6m4x | 16 | 16 100% | 11 | 0 | 5 | See every field |
| Newsrack Inspections aizm-q3sx | 16 | 16 100% | 6 | 0 | 1 | See every field |
| School Zones 2024-2025 (Elementary School) cmjf-yawu | 16 | 16 100% | 9 | 0 | 1 | See every field |
| Directory of NYCHA Community Facilities crns-fw6u | 16 | 16 100% | 11 | 0 | 7 | See every field |
| 2009 - 2010 Class Size - School-level Detail d3ge-anaz | 16 | 16 100% | 8 | 0 | 2 | See every field |
| Bicycle Parking Shelters dimy-qyej | 16 | 16 100% | 4 | 0 | 1 | See every field |
| Community Board Contact List dy27-rrad | 16 | 16 100% | 11 | 0 | 6 | See every field |
| Digital Tax Map: Condominium Units eguu-7ie3 | 16 | 16 100% | 6 | 0 | 1 | See every field |
| NYC Zoning Tax Lot Database fdkv-4t4z | 16 | 16 100% | 2 | 0 | 2 | See every field |
| E-Designations hxm3-23vy | 16 | 16 100% | 5 | 0 | 1 | See every field |
| TAX_LOT_POLYGON i38t-6if2 | 16 | 16 100% | 4 | 0 | 1 | See every field |
| 2017-2018 Physical Education - PE Space is5y-7g3y | 16 | 16 100% | 8 | 0 | 1 | See every field |
| Attendance Results 2013-2019 mg8s-7r2b | 16 | 16 100% | 7 | 0 | 1 | See every field |
| Bureau of Fire Prevention - Building Summary (Historical) nvgj-hbht | 16 | 16 100% | 6 | 0 | 4 | See every field |
| Multiple Dwelling Registrations tesw-yqqr | 16 | 16 100% | 4 | 0 | 2 | See every field |
| Local Law 161 Removals by Peace Officers at Benefits Access Centers and SNAP Centers tm9k-c4na | 16 | 16 100% | 14 | 0 | 7 | See every field |
| 2016-17 Physical Education - PE Space tvfr-dhen | 16 | 16 100% | 6 | 0 | 1 | See every field |
| Local Law 161 - Escorts at Benefits Access Centers and SNAP Centers tzsf-n2j8 | 16 | 16 100% | 13 | 0 | 7 | See every field |
| DCLA Cultural Organizations u35m-9t32 | 16 | 16 100% | 6 | 0 | 3 | See every field |
| Lottery Applications for Tobacco Retail Dealer (TRD) and Electronic Cigarette Dealer Licenses (ECD) u42f-se8e | 16 | 16 100% | 5 | 0 | 3 | See every field |
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.
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.
Gaps in the data behind this page
Source last observed Oct 12, 2026, 4:39 AM.
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, any dataset page.