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Lake County

county in Illinois, United States
AdministrativeArea county_of_illinois Q484263
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Summary

Lake County is a county of Illinois[1]. It ranks in the top 3% of county of illinois entities by monthly Wikipedia readership (1,731 views/month).[2]

Key Facts

  • Member of: GovAI Coalition[3]
  • Located in the administrative territorial entity: Illinois[4]
  • Country: United States[5]
  • Capital: Waukegan[6]
  • Shares border with: Kenosha County[7], Cook County[8], McHenry County[9], Allegan County[10], Van Buren County[11], Berrien County[12]
  • Named after: Lake Michigan[13]
  • Contains the administrative territorial entity: Waukegan[14], Highwood[15]
  • Twinned administrative body: Warrington[16]
  • Commons category: Lake County, Illinois[17]
  • Inception: March 1, 1839[18]
  • Official website: https://www.lakecountyil.gov/[19]
  • Topic's main category: Category:Lake County, Illinois[20]
  • Population: 703,462[21], 704,165[22], 701,052[23], 701,219[24], 703,019[25], 703,910[26], 714,342[27]
  • List of monuments: National Register of Historic Places listings in Lake County[28]
  • Category for people born here: Category:Births in Lake County, Illinois[29]
  • Category for people who died here: Category:Deaths in Lake County, Illinois[30]
  • Number of households: 248,684[31]
  • Native label: Lake County[32]
  • NCI Thesaurus ID: C108331[33]
  • Category of associated people: Category:People from Lake County, Illinois[34]
  • Different from: Lake and Peninsula Borough[35], Lake County[36], Lake of the Woods County[37]
  • Area: 3543 km²[38]
  • Water as percent of area: 67.6 percent[39]
  • Category for maps or plans: Category:Maps of Lake County, Illinois[40]

Why It Matters

Lake County has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[41] It is known by 33 alternative names across languages and contexts.[42]

Related Entities

Illinois Lake Michigan United States

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [5] ↑ . wikidata.org.
  2. [6] ↑ . wikidata.org.
  3. [7] ↑ . wikidata.org.
  4. [8] ↑ . wikidata.org.
  5. [9] ↑ . wikidata.org.
  6. [10] ↑ . wikidata.org.
  7. [11] ↑ . wikidata.org.
  8. [12] ↑ . wikidata.org.
  9. [4] ↑ . wikidata.org.
  10. [13] ↑ . wikidata.org.
  11. [14] ↑ . wikidata.org.
  12. [15] ↑ . wikidata.org.
  13. [16] ↑ . wikidata.org.
  14. [17] ↑ . wikidata.org.
  15. [3] ↑ . sanjoseca.gov. Retrieved . sanjoseca.gov. Provenance: wikidata.org.
  16. [18] ↑ . lakecountyil.gov. lakecountyil.gov. Provenance: wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . 2010 United States Census. Retrieved . census.gov. Provenance: wikidata.org.
  20. [22] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  21. [23] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  22. [24] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  23. [25] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  24. [26] ↑ . Population Estimates Program. census.gov. Provenance: wikidata.org.
  25. [27] ↑ . 2020 United States Census. Retrieved . data.census.gov. Provenance: wikidata.org.
  26. [28] ↑ . wikidata.org.
  27. [29] ↑ . wikidata.org.
  28. [30] ↑ . wikidata.org.
  29. [31] ↑ . 2016–2020 American Community Survey. Retrieved . data.census.gov. Provenance: wikidata.org.
  30. [32] ↑ . lakecountyil.gov. lakecountyil.gov. Provenance: wikidata.org.
  31. [33] ↑ . wikidata.org.
  32. [34] ↑ . wikidata.org.
  33. [35] ↑ . wikidata.org.
  34. [36] ↑ . wikidata.org.
  35. [37] ↑ . wikidata.org.
  36. [38] ↑ . wikidata.org.
  37. [39] ↑ . wikidata.org.
  38. [40] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [41] ↑ . Wikidata sitelinks. wikidata.org.
  3. [42] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Lake County. Retrieved October 14, 2026, from https://4ort.xyz/entity/lake-county-q484263
MLA “Lake County.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/lake-county-q484263.
BibTeX @misc{4ortxyz_lake-county-q484263_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Lake County}}, year = {2026}, url = {https://4ort.xyz/entity/lake-county-q484263}, note = {Accessed: 2026-10-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Lake County — https://4ort.xyz/entity/lake-county-q484263 (retrieved 2026-10-14)

Canonical URL: https://4ort.xyz/entity/lake-county-q484263 · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 15d ago · Schekinov Alexey Victorovich · 2026-10-03 view diff on Wikidata ↗
    Sitelink count → 52
    Wikipedia languages → ['ar', 'arz', 'azb', 'bar', 'bg', 'bpy', 'cdo', 'ce', 'ceb', 'cy', 'de', 'el', '
    Claims rich → —
    "/* wbsetclaim-update:2||1|1 */ Instance of: county of Illinois"
  2. 6w ago · Theklan · 2026-09-04 view diff on Wikidata ↗
    P14687 → Data:US presidential elections by county/Lake County, Illino
    "/* wbsetclaim-create:2||1 */ P14687: Data:US presidential elections by county/Lake County, Illinois.tab, Link US presidential election dataset (P14687, subject: United States presidential"
  3. 9w ago · RVA2869 · 2026-08-12 view diff on Wikidata ↗
    Located in time zone → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/46950|batch #46950]]: redundant value, already present at higher administrative level"
  4. 20w ago · Mxn · 2026-05-24 view diff on Wikidata ↗
    Umls cui → C3813636
    Member of → GovAI Coalition
    Taxonomicon id → 1805328
    Obo gazetteer id → 22225736
    "/* wbcreateclaim-create:1| */ Member of: GovAI Coalition, [[:toollabs:quickstatements/#/batch/258464|batch #258464]]"
  5. 22w ago · Mahir256 · 2026-05-13 view diff on Wikidata ↗
    Number of households → {'amount': '+248684'}
    Topic's main category → Category:Lake County, Illinois
    Population → —
    Inception → —
    + 32 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ Nci thesaurus id: C108331, #quickstatements; #temporary_batch_1778695477825"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.