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Jefferson County

county in Wisconsin, United States
AdministrativeArea county_of_wisconsin Q500958
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Summary

Jefferson County is a county of Wisconsin[1]. It draws 347 Wikipedia views per month (county of wisconsin category, ranking #24 of 73).[2]

Key Facts

  • Located in the administrative territorial entity: Wisconsin[3]
  • Country: United States[4]
  • Capital: Jefferson[5]
  • Shares border with: Dodge County[6], Waukesha County[7], Walworth County[8], Rock County[9], Dane County[10]
  • Named after: Thomas Jefferson[11]
  • Contains the administrative territorial entity: Jefferson[12]
  • Commons category: Jefferson County, Wisconsin[13]
  • Inception: 1836[14]
  • Official website: http://www.co.jefferson.wi.us[15], https://www.jeffersoncountywi.gov/[16]
  • Topic's main category: Category:Jefferson County, Wisconsin[17]
  • Commons gallery: Jefferson County, Wisconsin[18]
  • Population: 83,686[19], 83,680[20], 83,904[21], 84,351[22], 84,509[23], 84,559[24], 84,900[25]
  • List of monuments: National Register of Historic Places listings in Jefferson County, Wisconsin[26]
  • Category for people born here: Category:Births in Jefferson County, Wisconsin[27]
  • Category for people who died here: Category:Deaths in Jefferson County, Wisconsin[28]
  • Number of households: 33,349[29]
  • Native label: Jefferson County[30]
  • NCI Thesaurus ID: C110763[31]
  • Area: 1509 km²[32]
  • Water as percent of area: 4.5 percent[33]
  • Per capita income: 33,461 US dollars[34]
  • P14687: Data:US presidential elections by county/Jefferson County, Wisconsin.tab[35]

Why It Matters

Jefferson County has Wikipedia articles in 23 language editions, a strong signal of global cultural recognition.[36] It is known by 34 alternative names across languages and contexts.[37]

Related Entities

Thomas Jefferson United States Wisconsin

References

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

Direct Wikidata claims

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

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [36] ↑ . Wikidata sitelinks. wikidata.org.
  3. [37] ↑ . 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). Jefferson County. Retrieved October 10, 2026, from https://4ort.xyz/entity/jefferson-county-q500958
MLA “Jefferson County.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Oct. 2026, https://4ort.xyz/entity/jefferson-county-q500958.
BibTeX @misc{4ortxyz_jefferson-county-q500958_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Jefferson County}}, year = {2026}, url = {https://4ort.xyz/entity/jefferson-county-q500958}, note = {Accessed: 2026-10-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Jefferson County — https://4ort.xyz/entity/jefferson-county-q500958 (retrieved 2026-10-10)

Canonical URL: https://4ort.xyz/entity/jefferson-county-q500958 · 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. 2d ago · RVA2869 · 2026-10-10 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'bar', 'bg', 'bpy', 'cdo', 'ce', 'ceb', 'commons', 'cy', 'de', 'el', 'en'
    Claims rich → —
    "/* wbeditentity-update-languages-and-other-short:0||el */ Cleanup: remove self_stated_in+duplicate refs; normalize text ([[User:Difool/WikidataCleanup]])"
  2. 5w ago · Theklan · 2026-09-04 view diff on Wikidata ↗
    P14687 → Data:US presidential elections by county/Jefferson County, W
    "/* wbsetclaim-create:2||1 */ P14687: Data:US presidential elections by county/Jefferson County, Wisconsin.tab, Link US presidential election dataset (P14687, subject: United States presid"
  3. 13w ago · UKChris-wiki · 2026-07-11 view diff on Wikidata ↗
    Instance of → county of Wisconsin
    Area → {'unit': 'Q712226', 'amount': '+1509'}
    Category for people who died here → Category:Deaths in Jefferson County, Wisconsin
    Website → —
    + 30 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:1||1 */ Osm name suggestion index id: jeffersoncounty-ef1d28, Updated name-suggestion-index related claims, see https://nsi.guide for project details."
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.