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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, 8:31 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 | |
|---|---|---|---|---|---|---|
| DOB Stalled Construction Sites i296-73x5 | 8 | 8 100% | 4 | 0 | 3 | See every field |
| 2010 Census Blocks (water areas included) jyp7-eqhh | 8 | 8 100% | 2 | 0 | 1 | See every field |
| CPI_Zones sidw-jf8y | 8 | 8 100% | 3 | 0 | 2 | See every field |
| nycb2000 t3ph-3ztd | 8 | 8 100% | 2 | 0 | 1 | See every field |
| nycb2000wi ux2f-f5fi | 8 | 8 100% | 2 | 0 | 1 | See every field |
| New York City Population By Community Districts xi7c-iiu2 | 8 | 8 100% | 1 | 0 | 1 | See every field |
| 2010 Census Blocks y9w2-ph8n | 8 | 8 100% | 2 | 0 | 1 | See every field |
| Universal Solicitation of Broadband Target Neighborhoods 2qqs-crk2 | 7 | 7 100% | 1 | 0 | 1 | See every field |
| Compliance at-the-tap Lead and Copper Data 3wxk-qa8q | 7 | 7 100% | 3 | 0 | 2 | See every field |
| Summer Sports Experience and "Kids in Motion" Programming: 2022 to current 4pta-f4ca | 7 | 7 100% | 4 | 0 | 1 | See every field |
| Observations And Statuses For Inspections 6246-94tp | 7 | 7 100% | 4 | 0 | 1 | See every field |
| 2018-2019 Prelim Percentage Class Size Borough - K-8TH 8as3-nzhd | 7 | 7 100% | 2 | 0 | 1 | See every field |
| 2010 Census Tract to Neighborhood Tabulation Area Equivalency table 8ius-dhrr | 7 | 7 100% | 3 | 0 | 1 | See every field |
| DSNY Zones ak2e-nbe8 | 7 | 7 100% | 2 | 0 | 1 | See every field |
| TAX_BLOCK_POLYGON akq4-haa2 | 7 | 7 100% | 2 | 0 | 1 | See every field |
| Current Plan Programs bjmk-35w5 | 7 | 7 100% | 3 | 0 | 1 | See every field |
| FY2016-2017 Administrative Code 18-144 Park Maintenance Report Payroll Data caav-grv8 | 7 | 7 100% | 4 | 0 | 1 | See every field |
| DCM_ArterialsMajorStreets eshd-3mzu | 7 | 7 100% | 4 | 0 | 1 | See every field |
| Shared E-Scooter Parking Corrals hjz2-y62k | 7 | 7 100% | 4 | 0 | 1 | See every field |
| Digital Tax Map: Air Lots mdja-si6a | 7 | 7 100% | 4 | 0 | 1 | See every field |
| Inspections Requested n4tc-j6kh | 7 | 7 100% | 3 | 0 | 1 | See every field |
| Health Center Districts 6ez8-za84 | 6 | 6 100% | 2 | 0 | 1 | See every field |
| NYC Taxi Zones 8meu-9t5y | 6 | 6 100% | 2 | 0 | 1 | See every field |
| Street Direction Change Requests (2019 - 2025) 9a6i-gcns | 6 | 6 100% | 4 | 0 | 1 | See every field |
| 2018 Local Law 163 TASC Report a2pm-dj2w | 6 | 6 100% | 2 | 0 | 2 | See every field |
| DPR_PlayAreas_001 at6q-ktig | 6 | 6 100% | 1 | 0 | 1 | See every field |
| Cancelled Projects cwqt-nvfg | 6 | 6 100% | 3 | 0 | 1 | See every field |
| Directory Of Toilets In Public Parks hjae-yuav | 6 | 6 100% | 1 | 0 | 1 | See every field |
| Health Areas jntv-ngw5 | 6 | 6 100% | 2 | 0 | 1 | See every field |
| Municipal Court Districts mi5z-t7dx | 6 | 6 100% | 2 | 0 | 1 | See every field |
| Municipal Court Districts (water areas included) qssd-iewi | 6 | 6 100% | 2 | 0 | 1 | See every field |
| Designated_Areas_M_districts_AppendixJ rdff-24yn | 6 | 6 100% | 2 | 0 | 1 | See every field |
| New York City Population By Neighborhood Tabulation Areas swpk-hqdp | 6 | 6 100% | 3 | 0 | 2 | See every field |
| Block Pruning tqsy-2s6w | 6 | 6 100% | 2 | 0 | 1 | See every field |
| DCM usmc-hn5p | 6 | 6 100% | 3 | 0 | 1 | See every field |
| Added Projects 7xjx-2mhj | 5 | 5 100% | 2 | 0 | 1 | See every field |
| Borough Boundaries gthc-hcne | 5 | 5 100% | 2 | 0 | 1 | See every field |
| Sidewalk Management Database - Lot Info i642-2fxq | 5 | 5 100% | 1 | 0 | 1 | See every field |
| 2012 2013 Co- Location Memorandums t5w8-y8xf | 5 | 5 100% | 1 | 0 | 1 | See every field |
| Target Community District tngj-drbu | 5 | 5 100% | 4 | 0 | 1 | See every field |
| Hurricane Inundation by Evacuation Zone uk9f-6y9n | 5 | 5 100% | 2 | 0 | 1 | See every field |
| Civil Service Exams for NYCHA Residents - Local Law 163 vyk9-wyct | 5 | 5 100% | 4 | 0 | 2 | See every field |
| Borough Boundaries (water areas included) wh2p-dxnf | 5 | 5 100% | 2 | 0 | 1 | See every field |
| Advanced Projects yiqb-mq9h | 5 | 5 100% | 2 | 0 | 1 | See every field |
| Concrete/Hardware Weekly Repair Schedule 78sp-6jhj | 4 | 4 100% | 2 | 0 | 1 | See every field |
| Internet Master Plan: Home Broadband and Mobile Broadband Adoption by PUMA g5ah-i2sh | 4 | 4 100% | 2 | 0 | 1 | See every field |
| iZone PLS School List g993-cbry | 4 | 4 100% | 2 | 0 | 1 | See every field |
| Election District Poll Sites i3a3-qxkf | 4 | 4 100% | 1 | 0 | 1 | See every field |
| Outdoor Swimming Pool Attendance jvwx-xnsr | 4 | 4 100% | 2 | 0 | 1 | See every field |
| Lower Density Growth Management Areas ke4t-kbpi | 4 | 4 100% | 1 | 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 12, 2026, 8:31 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.