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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, 12:24 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 nta. Clear
| Dataset | Fields | Decided | Understood | Nobody looked | Shared terms | |
|---|---|---|---|---|---|---|
| Local Law 44 - Building hu6m-9cfi | 24 | 24 100% | 10 | 0 | 5 | See every field |
| Early Learn Project Sites vmfm-wic2 | 24 | 24 100% | 13 | 0 | 8 | See every field |
| NYC Pool Inspections 3kfa-rvez | 23 | 23 100% | 9 | 0 | 3 | See every field |
| DOHMH School Cafeteria Inspections (Historical) 9hxz-c2kj | 23 | 23 100% | 14 | 0 | 5 | See every field |
| Serious Injury Response, Tracking & Analysis Program (SIRTA) xeqp-qz8h | 23 | 23 100% | 11 | 0 | 5 | See every field |
| Grant Applications Tracking Table 97zg-4p9t | 22 | 22 100% | 13 | 0 | 4 | See every field |
| Evaluation and Monitoring Reports for Program Sites 9f5n-qdib | 22 | 22 100% | 12 | 0 | 4 | See every field |
| Certification of No Harassment (CONH) Pilot Building List bzxi-2tsw | 22 | 22 100% | 10 | 0 | 6 | See every field |
| NYC Cooling Tower System Inspection Results f9wb-g8mb | 22 | 22 100% | 12 | 0 | 4 | See every field |
| NYC Drinking Water Tank Inspections and Audits Compliance Results rytv-g5ui | 22 | 22 100% | 12 | 0 | 4 | See every field |
| DCAS Managed Public Buildings xx2p-4jnq | 22 | 22 100% | 11 | 0 | 4 | See every field |
| Verified Locations for NYC City-Funded Social Service Contracts FY2018 (Physical Address) 922w-z7da | 21 | 21 100% | 8 | 0 | 5 | See every field |
| Queens Library Branches kh3d-xhq7 | 21 | 21 100% | 11 | 0 | 7 | See every field |
| Clergy Parking Permits bvug-v3mm | 20 | 20 100% | 11 | 0 | 5 | See every field |
| Active NYC Health Code Regulated Child Care Programs gy3q-4tzp | 20 | 20 100% | 9 | 0 | 4 | See every field |
| FloodNet: Sensor Deployment Metadata kb2e-tjy3 | 20 | 20 100% | 10 | 0 | 5 | See every field |
| DOHMH HIV Service Directory pwts-g83w | 20 | 20 100% | 10 | 0 | 6 | See every field |
| Local Law 161 - Use of Force (UoF) Incidents at Benefits Access Centers and SNAP Centers gxfj-gcr2 | 19 | 19 100% | 14 | 0 | 7 | See every field |
| TLC Driver Exam Testing Center Locations h922-d8e5 | 19 | 19 100% | 12 | 0 | 7 | See every field |
| SCOUT CORE xrwg-eczf | 19 | 19 100% | 11 | 0 | 5 | See every field |
| Licensed Wholesale Cigarette Dealers 98b7-th5j | 18 | 18 100% | 12 | 0 | 6 | See every field |
| Inclusionary Housing Properties cm6g-t7ye | 18 | 18 100% | 11 | 0 | 4 | See every field |
| Other Tobacco Products License f264-qcv3 | 18 | 18 100% | 11 | 0 | 5 | See every field |
| NYC EV Fleet Station Network fc53-9hrv | 18 | 18 100% | 10 | 0 | 5 | See every field |
| Ready NY Events hyur-qpyf | 18 | 18 100% | 11 | 0 | 5 | See every field |
| Adding Chemicals to Water Supply Permits v8i9-yfpr | 18 | 18 100% | 8 | 0 | 5 | See every field |
| Non-Public School Security Guard Reimbursement Program - Qualified Provider List xphq-immx | 18 | 18 100% | 10 | 0 | 5 | See every field |
| Transportable Classroom Units- Buildings Only 3spy-rjpw | 17 | 17 100% | 9 | 0 | 6 | See every field |
| Pre-Application Meetings 855v-w7mc | 17 | 17 100% | 11 | 0 | 6 | See every field |
| Application for State Aid 8gpu-s594 | 17 | 17 100% | 10 | 0 | 6 | See every field |
| Taxicab Partition Manufacturers and Installers y9b6-624z | 17 | 17 100% | 11 | 0 | 6 | See every field |
| Jobs Created by Energy Cost Savings Program Savings for Businesses yqky-aebb | 17 | 17 100% | 11 | 0 | 5 | 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 |
| 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 |
| Medicaid Offices ibs4-k445 | 16 | 16 100% | 10 | 0 | 6 | See every field |
| DCLA Cultural Organizations u35m-9t32 | 16 | 16 100% | 6 | 0 | 3 | See every field |
| ECS Conduit Data x9i6-ckbm | 16 | 16 100% | 10 | 0 | 3 | See every field |
| NYC Cooling Tower Registrations y4fw-iqfr | 16 | 16 100% | 8 | 0 | 5 | See every field |
| Capacity Projects in Process Site Locations dtmw-avzj | 15 | 15 100% | 11 | 0 | 7 | See every field |
| Permitted Nonpotable Wells gnyq-kf2y | 14 | 14 100% | 9 | 0 | 5 | See every field |
| 2020 Census Tracts to 2020 NTAs and CDTAs Equivalency hm78-6dwm | 14 | 14 100% | 7 | 0 | 3 | See every field |
| Radiation Producing Equipment i595-2byq | 14 | 14 100% | 6 | 0 | 2 | See every field |
| Recognized Shop Healthy Stores ud4g-9x9z | 14 | 14 100% | 11 | 0 | 6 | See every field |
| Pre-K Project Site Location 4zdr-zwdi | 13 | 13 100% | 8 | 0 | 7 | See every field |
| 3K Projects by Site Locations yv4m-nu6d | 13 | 13 100% | 10 | 0 | 7 | See every field |
| nyct2000wi 5n8j-8i2y | 12 | 12 100% | 4 | 0 | 2 | See every field |
| nyct2000 7igh-afai | 12 | 12 100% | 4 | 0 | 2 | See every field |
| Internet Master Plan: Broadband Choice and Speed by Census Block 8ess-ssnw | 12 | 12 100% | 3 | 0 | 2 | See every field |
| 2010 Census Tracts bmjq-373p | 12 | 12 100% | 4 | 0 | 2 | 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, 12:24 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.