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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, 5:49 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 Census Tracts to 2020 NTAs and CDTAs Equivalency

hm78-6dwm

Fields catalogued

Understood

Checked, no match

Nobody has looked

Most read — At least three quarters of their fields carry a verdict.

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
cdtatype CDTAType	Text	Understood	category.classification Publisher classification	dictionary_read Differentiates between CDTAS which represent a community district (CD) or a joint interest area	—
cdtacode CDTACode	Text	Checked, no match	—	value_profile Unique alphanumeric identifier representing Community District Tabulation Areas (CDTA)	—
ntatype NTAType	Number	Understood	category.classification Publisher classification	value_domain_read top[6]={0×2255; 9×47; 7×14; 6×8; 8×2; 5×1}	—
ntaname NTAName	Text	Checked, no match	—	value_domain_read	—
ntaabbrev NTAAbbrev	Text	Checked, no match	—	value_domain_read smallest=Abrndl largest=YnkStdm	—
borocode BoroCode	Number	Understood	place.borough Borough	value_domain_read	borough
ntacode NTACode	Text	Understood	place.nta Neighborhood Tabulation Area	value_domain_read	nta
ct2020 CT2020	Text	Nobody has looked	—	—	—
ctlabel CTLabel	Number	Checked, no match	—	value_domain_read	—
geoid GEOID	Text	Nobody has looked	—	—	—
boroct2020 BoroCT2020	Text	Understood	place.census_tract Census Tract	value_domain_read	census_tract
cdtaname CDTAName	Text	Checked, no match	—	value_domain_read smallest=BK01 Williamsburg-Greenpoint largest=SI95 Great Kills Park-Fort W	—
boroname BoroName	Text	Understood	place.borough Borough	value_domain_read	borough
countyfips CountyFIPS	Text	Nobody has looked	—	—	—