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Coverage

56,681 of 56,681 columns decided — 100.0% · 12,642 bound (22.3%) · 0 still unread

Bound: 12,642; 22.3%; a concept was found and asserted for the column.
Refused: 32,953; 58.1%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 11,086; 19.6%; read, but the evidence did not settle it.
Unanalysed: 0; 0.0%; 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 11, 2026, 10:36 PM

Where the unread columns are

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.

Gaps in the data behind this page

603 of the 3,026 datasets in the catalog list no columns at all.

Source last observed Oct 11, 2026, 10:36 PM.

Where each note comes from

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.

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

Datasets with the most fields left to read

Showing 101–150 of 603
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
NYC Wetlands Map 7piy-bhr9	0	0 —	0	0	0	See every field
DEP Demand Management Projects 7ppc-iii7	0	0 —	0	0	0	See every field
TAX_LOT_POLYGON 7qs7-yv7y	0	0 —	0	0	0	See every field
Topobathymetric LiDAR Data (2017) 7sc8-jtbz	0	0 —	0	0	0	See every field
Pseudo Lots (Map) 7uw4-q8dg	0	0 —	0	0	0	See every field
Municipal Court Districts 7vpq-4bh4	0	0 —	0	0	0	See every field
WalkNYC Focus BaseMap 2020 7vx2-ffkw	0	0 —	0	0	0	See every field
Leaning Bars (Map) 7w73-8bcz	0	0 —	0	0	0	See every field
Municipal Parking Facilities (Bronx) 7xqy-uv7r	0	0 —	0	0	0	See every field
Directory of Nature Preserves 7yhi-h8kc	0	0 —	0	0	0	See every field
Local Law 44 (2009-2012) 7zf5-7vum	0	0 —	0	0	0	See every field
Local Law 63 Plan 824w-7c8u	0	0 —	0	0	0	See every field
Directory of Eateries 8792-ebcp	0	0 —	0	0	0	See every field
2016 - 2017 Biannual Report January 87fc-zpp6	0	0 —	0	0	0	See every field
2018 Kindergarten Directory - Manhattan 8c77-xxaj	0	0 —	0	0	0	See every field
Demographic Profiles of ACS 5 Year Estimates at the Neighborhood Tabulation Area (NTA) level 8cwr-7pqn	0	0 —	0	0	0	See every field
Play Areas 8fhn-c4v3	0	0 —	0	0	0	See every field
Demographic Profiles of ACS 5 Year Estimates at the Public Use Microdata Areas (PUMA) Level 8fje-7v4x	0	0 —	0	0	0	See every field
NYC Parks Dog Runs 8nac-uner	0	0 —	0	0	0	See every field
2016 - 2017 School Based Expenditure Report 8v7s-b663	0	0 —	0	0	0	See every field
Board of Standards and Appeals (BSA) Decisions Map 99rv-74dm	0	0 —	0	0	0	See every field
Landcover Raster Data (2010) – 3ft Resolution 9auy-76zt	0	0 —	0	0	0	See every field
New York City Bike Routes (Map) 9e2b-mctv	0	0 —	0	0	0	See every field
2006 Ortho Tile Index 9e4i-rd56	0	0 —	0	0	0	See every field
Cable Complaints 9h97-fe3u	0	0 —	0	0	0	See every field
NYC Council Constituent Services 9hzi-kbqb	0	0 —	0	0	0	See every field
NYC Stormwater Flood Maps 9i7c-xyvv	0	0 —	0	0	0	See every field
DSNY Zones (Map) 9ix2-uc5v	0	0 —	0	0	0	See every field
Recording Studios 9ixa-eggw	0	0 —	0	0	0	See every field
2019-2020 Preschool Education Report LL21 9k6z-7hxf	0	0 —	0	0	0	See every field
Directory of Running Tracks 9ned-hmak	0	0 —	0	0	0	See every field
Protected Streets - Segments 9p9k-tusd	0	0 —	0	0	0	See every field
Sea Level Rise Maps (2100 100-year Floodplain) 9pim-syj6	0	0 —	0	0	0	See every field
Human Services Plan 9rim-7u4b	0	0 —	0	0	0	See every field
Internet Access by Select Demographics in New York City - 2016 9ss3-avyg	0	0 —	0	0	0	See every field
2001 Staten Island Orthoimagery Tile Index 9wui-eigp	0	0 —	0	0	0	See every field
Electronics Drop Off Locations in NYC (Map) 9wzr-uhik	0	0 —	0	0	0	See every field
2014 Orthoimagery Staten Island - 1 of 2 a2ei-5yi4	0	0 —	0	0	0	See every field
Preventive New Cases a2ju-qb9a	0	0 —	0	0	0	See every field
DSNY Commercial Waste Zones (Map) a7bv-5698	0	0 —	0	0	0	See every field
Sidewalk Centerline a9xv-vek9	0	0 —	0	0	0	See every field
2012 Orthoimagery Tile Index aajk-7hbr	0	0 —	0	0	0	See every field
Parks Zones Map ab4a-qhzt	0	0 —	0	0	0	See every field
High School Graduation Rates in Foster Care abgy-h8ag	0	0 —	0	0	0	See every field
Directory of Concessions ac9y-je94	0	0 —	0	0	0	See every field
20th Annual Report of the Commission acvt-i9fr	0	0 —	0	0	0	See every field
Floodnet: Sensor Deployment Metadata ag7h-2pg6	0	0 —	0	0	0	See every field
NYC Parks Structures Map ahzi-mykc	0	0 —	0	0	0	See every field
Sea Level Rise Maps (2020s 500-year Floodplain) ajyu-7sgg	0	0 —	0	0	0	See every field
2080s Mean Monthly High Water amfa-s2y8	0	0 —	0	0	0	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.