As of 2022-03-07, the Wikidata property LoC and MARC vocabularies ID (P4801) is used on 1,176 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
P646 Freebase ID 1,033
0.0002
P227 GND ID 796
0.0006
P244 Library of Congress authority ID 795
0.0006
P8408 KBpedia ID 754
0.0196
P1417 Encyclopædia Britannica Online ID 749
0.0044
P1245 OmegaWiki Defined Meaning 666
0.0554
P3417 Quora topic ID 654
0.0035
P2347 YSO ID 615
0.0253
P8189 National Library of Israel J9U ID 613
0.0036
P268 Bibliothèque nationale de France ID 593
0.0010
P2924 Great Russian Encyclopedia Online ID 537
0.0106
P349 National Diet Library ID 529
0.0038
P305 IETF language tag 481
0.0525
P2581 BabelNet ID 481
0.0066
P219 ISO 639-2 code 479
0.4032
P1296 Gran Enciclopèdia Catalana ID 469
0.0041
P1014 Art & Architecture Thesaurus ID 463
0.0188
P1394 Glottolog code 442
0.0388
P4342 Store norske leksikon ID 433
0.0056
P7818 French Vikidia ID 430
0.0207
P5250 IAB code 426
0.2355
P220 ISO 639-3 code 418
0.0461
P3916 UNESCO Thesaurus ID 416
0.1091
P10369 Lingua Libre ID 415
0.2817
P9060 POSIX locale identifier 411
0.2968
P1036 Dewey Decimal Classification 403
0.0629
P4527 UK Parliament thesaurus ID 384
0.0143
P214 VIAF ID 383
0.0001
P691 NKCR AUT ID 378
0.0008
P8814 WordNet 3.1 Synset ID 375
0.0227
P1627 Ethnologue.com language code 368
0.0440
P6385 Krugosvet article 366
0.0535
P269 IdRef ID 365
0.0007
P7859 WorldCat Identities ID 363
0.0002
P1566 GeoNames ID 354
0.0001
P1225 U.S. National Archives Identifier 352
0.0005
P9100 GitHub topic 329
0.0995
P486 MeSH descriptor ID 327
0.0086
P7471 iNaturalist place ID 327
0.0062
P901 FIPS 10-4 (countries and regions) 326
0.0643
P402 OpenStreetMap relation ID 326
0.0016
P982 MusicBrainz area ID 325
0.0104
P278 GOST 7.75–97 code 322
0.2612
P6766 Who's on First ID 320
0.0005
P1667 Getty Thesaurus of Geographic Names ID 318
0.0061
P5063 Interlingual Index ID 316
0.0315
P3984 subreddit 313
0.0262
P4427 GACS ID 312
0.2161
P6293 YSA ID 309
0.0939
P998 Curlie ID 309
0.0248

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P219 ISO 639-2 code 479
0.4032
P9060 POSIX locale identifier 411
0.2968
P10369 Lingua Libre ID 415
0.2817
P278 GOST 7.75–97 code 322
0.2612
P5250 IAB code 426
0.2355
P4427 GACS ID 312
0.2161
P298 ISO 3166-1 alpha-3 code 252
0.2107
P297 ISO 3166-1 alpha-2 code 252
0.2105
P299 ISO 3166-1 numeric code 251
0.2099
P9948 The World Factbook country ID 242
0.2034
P3175 Statoids ID 239
0.2015
P3422 INSEE countries and foreign territories code 237
0.1973
P3068 WIPO ST.3 215
0.1805
P984 IOC country code 213
0.1765
P5180 CIVICUS Monitor country entry 192
0.1630
P3024 ITU letter code 187
0.1583
P218 ISO 639-1 code 184
0.1561
P3612 Le Monde diplomatique subject ID 220
0.1356
P7870 Analysis & Policy Observatory term ID 154
0.1130
P3916 UNESCO Thesaurus ID 416
0.1091
P9123 Catalan Vikidia ID 159
0.1068
P1251 ABS ASCL 2011 code 154
0.1062
P6849 DR topic ID 189
0.1011
P9100 GitHub topic 329
0.0995
P9937 Postimees topic ID 145
0.0949
P6293 YSA ID 309
0.0939
P1617 BBC Things ID 214
0.0927
P7827 Spanish Vikidia ID 231
0.0917
P7829 English Vikidia ID 170
0.0885
P7322 Marine Regions Geographic IDentifier (MRGID) 103
0.0866
P1466 WALS lect code 293
0.0826
P7157 The Top Tens ID 179
0.0811
P1396 Linguasphere code 120
0.0810
P9886 TermCymru ID 118
0.0765
P6573 Klexikon article ID 269
0.0747
P8217 iDAI.gazetteer ID 129
0.0746
P9757 Schoenberg Database of Manuscripts place ID 140
0.0734
P10234 Der Spiegel topic ID 102
0.0721
P10291 Wikisimpsons ID 213
0.0713
P3743 ITU/ISO/IEC object identifier 193
0.0701
P8370 UNBIS Thesaurus ID 100
0.0701
P3221 New York Times topic ID 236
0.0681
P3911 STW Thesaurus for Economics ID 232
0.0679
P7822 Italian Vikidia ID 128
0.0669
P7012 World Encyclopedia of Puppetry Arts ID 114
0.0662
P5437 EuroVoc ID 254
0.0647
P901 FIPS 10-4 (countries and regions) 326
0.0643
P1036 Dewey Decimal Classification 403
0.0629
P5843 Gynopedia ID 98
0.0618
P9368 CNA topic ID 88
0.0602