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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 11, 2026, 4:29 PM
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 zip. Clear
| Dataset | Fields | Decided | Understood | Nobody looked | Shared terms | |
|---|---|---|---|---|---|---|
| Taxicab Partition Manufacturers and Installers y9b6-624z | 17 | 17 100% | 11 | 0 | 6 | See every field |
| DSNY Special Waste Drop-off Sites 242c-ru4i | 16 | 16 100% | 5 | 0 | 3 | See every field |
| Directory of Benefits Access Centers 9d9t-bmk7 | 16 | 16 100% | 8 | 0 | 5 | See every field |
| Directory of NYCHA Community Facilities crns-fw6u | 16 | 16 100% | 11 | 0 | 7 | See every field |
| Community Board Contact List dy27-rrad | 16 | 16 100% | 11 | 0 | 6 | See every field |
| Medicaid Offices ibs4-k445 | 16 | 16 100% | 10 | 0 | 6 | 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 |
| Local Law 161 - Escorts at Benefits Access Centers and SNAP Centers tzsf-n2j8 | 16 | 16 100% | 13 | 0 | 7 | 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 |
| Referral Centers For High School Alternatives w8dz-xpjh | 16 | 16 100% | 6 | 0 | 4 | See every field |
| Buildings Selected for the Underlying Conditions Program xpbf-ithr | 16 | 16 100% | 9 | 0 | 5 | See every field |
| NYC Cooling Tower Registrations y4fw-iqfr | 16 | 16 100% | 8 | 0 | 5 | See every field |
| NYCHA Facilities and Service Centers d4iy-9uh7 | 15 | 15 100% | 7 | 0 | 4 | See every field |
| Capacity Projects in Process Site Locations dtmw-avzj | 15 | 15 100% | 11 | 0 | 7 | See every field |
| Prequalified Firms szkz-syh6 | 15 | 15 100% | 7 | 0 | 1 | See every field |
| Directory of SNAP Centers tc6u-8rnp | 15 | 15 100% | 8 | 0 | 5 | See every field |
| Capital Grant Awards 2018 66yh-nemi | 14 | 14 100% | 6 | 0 | 4 | See every field |
| Capital Grant Awards 2015 6wee-b7wf | 14 | 14 100% | 8 | 0 | 4 | See every field |
| Capital Grant Awards 2016 83z6-smyr | 14 | 14 100% | 7 | 0 | 3 | See every field |
| Directory Of DHS Contacts cete-9g3v | 14 | 14 100% | 9 | 0 | 5 | See every field |
| NYC Parks Events Listing – Event Locations cpcm-i88g | 14 | 14 100% | 3 | 0 | 1 | See every field |
| Permitted Nonpotable Wells gnyq-kf2y | 14 | 14 100% | 9 | 0 | 5 | See every field |
| Capital Grant Awards 2017 k84j-firu | 14 | 14 100% | 6 | 0 | 4 | See every field |
| NYC Parks Active and Passive Recreation kcqe-vnci | 14 | 14 100% | 5 | 0 | 2 | See every field |
| Directory Of Homebase Locations ntcm-2w4k | 14 | 14 100% | 7 | 0 | 4 | See every field |
| GED Plus Locations pd5h-92mc | 14 | 14 100% | 9 | 0 | 4 | See every field |
| Manhattan Community Garden Sites Data qrb4-aqtx | 14 | 14 100% | 9 | 0 | 5 | See every field |
| Recognized Shop Healthy Stores ud4g-9x9z | 14 | 14 100% | 11 | 0 | 6 | See every field |
| Police- Community Relations Awards 2016 w38c-pyzq | 14 | 14 100% | 9 | 0 | 5 | See every field |
| Pre-K Project Site Location 4zdr-zwdi | 13 | 13 100% | 8 | 0 | 7 | See every field |
| LIBRARY feuq-due4 | 13 | 13 100% | 7 | 0 | 3 | See every field |
| Arches Organization Information jign-uhe6 | 13 | 13 100% | 7 | 0 | 4 | See every field |
| Safe Routes to Schools - Priority Schools pc34-d3sx | 13 | 13 100% | 9 | 0 | 5 | See every field |
| Borough Enrollment Centers (Additional Ways To Graduate) yj3u-pw36 | 13 | 13 100% | 8 | 0 | 5 | See every field |
| 3K Projects by Site Locations yv4m-nu6d | 13 | 13 100% | 10 | 0 | 7 | See every field |
| Directory Of DOP Office Locations tfbb-gszk | 12 | 12 100% | 6 | 0 | 3 | See every field |
| COVID-19 Free Meals Locations sp4a-vevi | 11 | 11 100% | 8 | 0 | 1 | See every field |
| DPR_ModelAircraftFields_001 brsj-szf5 | 10 | 10 100% | 4 | 0 | 3 | See every field |
| DPR_FunctionalParkland_001 g5fd-8j6i | 10 | 10 100% | 1 | 0 | 1 | See every field |
| MOIA In-person Interpretation Service Requests mcti-yg8i | 10 | 10 100% | 2 | 0 | 1 | See every field |
| NYC REACH Members 7btz-mnc8 | 9 | 9 100% | 9 | 0 | 2 | See every field |
| POST_OFFICE bdha-6eqy | 9 | 9 100% | 3 | 0 | 2 | See every field |
| CEQR Project Locations did2-qzw3 | 8 | 8 100% | 1 | 0 | 1 | See every field |
| 2020-21 SMH Service Coverage qxbt-vysj | 8 | 8 100% | 4 | 0 | 1 | See every field |
| Compliance at-the-tap Lead and Copper Data 3wxk-qa8q | 7 | 7 100% | 3 | 0 | 2 | See every field |
| Completed Percent for Art projects with artist information gzdv-qiga | 7 | 7 100% | 5 | 0 | 2 | See every field |
| Bronx Community Boards wbau-xy7g | 7 | 7 100% | 6 | 0 | 1 | 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 11, 2026, 4:29 PM.
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.