As of 2022-03-07, the Wikidata property CGNDB unique ID (P821) is used on 3,702 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P1566 GeoNames ID 2,919
0.0008
P646 Freebase ID 1,263
0.0003
P2671 Google Knowledge Graph ID 666
0.0001
P2100 Banque de noms de lieux du Québec ID 542
0.0063
P809 WDPA ID 471
0.0046
P214 VIAF ID 445
0.0002
P402 OpenStreetMap relation ID 357
0.0017
P6766 Who's on First ID 320
0.0005
P244 Library of Congress authority ID 297
0.0002
P3412 Canadian Environmental Sustainability Indicators ID (Protected areas) 249
0.0543
P7859 WorldCat Identities ID 217
0.0001
P2099 BC Geographical Names ID 199
0.0341
P1667 Getty Thesaurus of Geographic Names ID 173
0.0032
P7471 iNaturalist place ID 171
0.0031
P1296 Gran Enciclopèdia Catalana ID 157
0.0013
P3012 Statistics Canada Geographic code 144
0.0214
P1417 Encyclopædia Britannica Online ID 125
0.0007
P982 MusicBrainz area ID 114
0.0034
P2581 BabelNet ID 97
0.0013
P227 GND ID 94
0.0001
P5395 Canadian Encyclopedia article ID 84
0.0080
P3507 Bivouac.com mountain ID 81
0.0174
P3417 Quora topic ID 71
0.0004
P3109 Peakbagger mountain ID 67
0.0073
P8189 National Library of Israel J9U ID 59
0.0003
P590 GNIS ID 58
0.0001
P2163 FAST ID 55
0.0001
P4839 Wolfram Language entity code 54
0.0003
P4342 Store norske leksikon ID 51
0.0006
P3280 BAnQ author ID 50
0.0028
P477 Canadian Register of Historic Places ID 43
0.0045
P949 National Library of Israel ID 43
0.0005
P5573 archINFORM location ID 39
0.0009
P3749 Google Maps Customer ID 37
0.0008
P1225 U.S. National Archives Identifier 36
0.0001
P268 Bibliothèque nationale de France ID 35
0.0001
P3856 Quebec municipalities geographical code 29
0.0058
P8408 KBpedia ID 29
0.0007
P2526 National Historic Sites of Canada ID 27
0.0058
P1670 Canadiana Authorities ID (former scheme) 27
0.0027
P5063 Interlingual Index ID 26
0.0020
P998 Curlie ID 26
0.0017
P2924 Great Russian Encyclopedia Online ID 25
0.0005
P3513 peakware mountain ID 24
0.0041
P8814 WordNet 3.1 Synset ID 23
0.0012
P8179 Canadiana Name Authority ID 22
0.0004
P7818 French Vikidia ID 20
0.0008
P3770 PeakFinder ID 19
0.0051
P1036 Dewey Decimal Classification 19
0.0020
P1937 UN/LOCODE 19
0.0018

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P3412 Canadian Environmental Sustainability Indicators ID (Protected areas) 249
0.0543
P2099 BC Geographical Names ID 199
0.0341
P3012 Statistics Canada Geographic code 144
0.0214
P3507 Bivouac.com mountain ID 81
0.0174
P5395 Canadian Encyclopedia article ID 84
0.0080
P3109 Peakbagger mountain ID 67
0.0073
P2100 Banque de noms de lieux du Québec ID 542
0.0063
P3856 Quebec municipalities geographical code 29
0.0058
P2526 National Historic Sites of Canada ID 27
0.0058
P3770 PeakFinder ID 19
0.0051
P809 WDPA ID 471
0.0046
P477 Canadian Register of Historic Places ID 43
0.0045
P3513 peakware mountain ID 24
0.0041
P982 MusicBrainz area ID 114
0.0034
P1667 Getty Thesaurus of Geographic Names ID 173
0.0032
P7471 iNaturalist place ID 171
0.0031
P3309 SummitPost ID 14
0.0028
P6778 OBO Gazetteer ID 11
0.0028
P3280 BAnQ author ID 50
0.0028
P3907 LoJ peak ID 12
0.0027
P1670 Canadiana Authorities ID (former scheme) 27
0.0027
P3813 Bivouac.com pass ID 9
0.0024
P4173 Instagram location ID 16
0.0022
P1036 Dewey Decimal Classification 19
0.0020
P5063 Interlingual Index ID 26
0.0020
P3635 Peakbagger area ID 8
0.0020
P3006 Marine Regions Geographic ID 8
0.0020
P633 Quebec cultural heritage directory ID 11
0.0018
P1937 UN/LOCODE 19
0.0018
P7127 AllTrails trail ID 8
0.0018
P402 OpenStreetMap relation ID 357
0.0017
P998 Curlie ID 26
0.0017
P7279 Peakbagger key col ID 6
0.0016
P3847 Open Library subject ID 9
0.0013
P1296 Gran Enciclopèdia Catalana ID 157
0.0013
P7197 OpenWeatherMap city ID 6
0.0013
P2581 BabelNet ID 97
0.0013
P7772 Atlas Obscura identifier 15
0.0012
P3984 subreddit 18
0.0012
P8814 WordNet 3.1 Synset ID 23
0.0012
P1886 Smithsonian volcano ID 6
0.0011
P4708 VOGRIPA ID 6
0.0011
P9292 Encyclopédie du patrimoine culturel de l'Amérique française ID (French) 4
0.0011
P2887 reserve number (Canada) 4
0.0011
P7502 Golden ID 6
0.0011
P1997 Facebook Places ID 9
0.0010
P1968 Foursquare venue ID 9
0.0010
P6799 GLIMS ID 6
0.0010
P5200 eBird hotspot ID 4
0.0010
P3326 World Waterfall Database ID 4
0.0009