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Coverage

46,873 of 56,681 columns decided — 82.7% · 9,148 bound (16.1%) · 9,808 still unread

Bound: 9,148; 16.1%; a concept was found and asserted for the column.
Refused: 29,070; 51.3%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 8,655; 15.3%; read, but the evidence did not settle it.
Unanalysed: 9,808; 17.3%; 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 10, 2026, 6:30 PM

3,026 datasets, 56,681 catalogued fields, 9,808 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.

2020 Community District Tabulation Areas (CDTAs)

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Fields catalogued

Understood

Checked, no match

Nobody has looked

Every field decided — Every field carries a verdict — which does not mean every field is understood.

Every field in this dataset

Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.

Field	Type	What we know	Meaning	How it was decided	Shared term
cdtaname CDTAName	Text	Checked, no match	—	value_domain_read smallest=BK01 Williamsburg-Greenpoint largest=SI95 Great Kills Park-Fort W	—
shape_area Shape_Area	Number	Checked, no match	—	dictionary_read Area of feature in internal units squared.	—
shape_leng Shape_Length	Number	Checked, no match	—	dictionary_read Length of feature in internal units.	—
cdtatype CDTAType	Text	Understood	category.classification Publisher classification	dictionary_read One digit code assigned to a CDTA to distinguish between those that are representative of a Community District (given a code of 0)	—
borocode BoroCode	Number	Understood	place.borough Borough	value_domain_read	borough
countyfips CountyFIPS	Text	Checked, no match	—	value_domain_read top[5]={047×20; 081×19; 005×15; 061×13; 085×4}	—
the_geom	MultiPolygon	Not enough to tell	—	datatype_projection matched by name, unread	—
cdta2020 CDTA2020	Text	Checked, no match	—	value_profile Community District Tabulation Area code	—
boroname BoroName	Text	Understood	place.borough Borough	value_domain_read	borough