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County of Contra Costa

government of Contra Costa County, California, United States
Thing county_government_in_california Q112921114
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County of Contra Costa

Summary

County of Contra Costa is a county government in California[1].

Key Facts

  • County of Contra Costa was a member of San Francisco Bay Area Rapid Transit District[2].
  • County of Contra Costa was a member of Association of Bay Area Governments[3].
  • County of Contra Costa is in the country of United States[4].
  • County of Contra Costa's instance of is recorded as county government in California[5].
  • County of Contra Costa's headquarters location is recorded as Martinez[6].
  • County of Contra Costa's legislative body is recorded as Contra Costa County Board of Supervisors[7].
  • County of Contra Costa's child organization or unit is recorded as Contra Costa County Library[8].
  • County of Contra Costa's child organization or unit is recorded as Central Contra Costa Sanitary District[9].
  • County of Contra Costa's child organization or unit is recorded as Contra Costa County Office of the Sheriff[10].
  • County of Contra Costa's child organization or unit is recorded as Contra Costa County Office of Education[11].
  • County of Contra Costa's child organization or unit is recorded as Contra Costa County Department of Information Technology[12].
  • County of Contra Costa's Commons category is recorded as Government of Contra Costa County, California[13].
  • County of Contra Costa's official website is recorded as https://www.contracosta.ca.gov/[14].
  • County of Contra Costa's topic's main category is recorded as Category:Government of Contra Costa County, California[15].
  • County of Contra Costa's applies to jurisdiction is recorded as Contra Costa County[16].
  • County of Contra Costa's affiliation is recorded as Contra Costa County Employees' Retirement Association[17].
  • County of Contra Costa's terms of service URL is recorded as https://www.contracosta.ca.gov/1867/Legal-Notices[18].
  • County of Contra Costa's social media followers is recorded as {'unit': '1', 'amount': '+21243'}[19].
  • County of Contra Costa's social media followers is recorded as {'unit': '1', 'amount': '+22254'}[20].

Body

Definition and Type

County of Contra Costa's instance of is recorded as county government in California[5].

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] ↑ . contracosta.ca.gov. Retrieved . contracosta.ca.gov. Provenance: wikidata.org.
  4. [7] ↑ . wikidata.org.
  5. [8] ↑ . wikidata.org.
  6. [9] ↑ . wikidata.org.
  7. [10] ↑ . wikidata.org.
  8. [11] ↑ . wikidata.org.
  9. [12] ↑ . wikidata.org.
  10. [13] ↑ . wikidata.org.
  11. [2] ↑ . wikidata.org.
  12. [3] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . contracosta.ca.gov. Retrieved . contracosta.ca.gov. Provenance: wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. 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). County of Contra Costa. Retrieved May 3, 2026, from https://4ort.xyz/entity/county-of-contra-costa
MLA “County of Contra Costa.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/county-of-contra-costa.
BibTeX @misc{4ortxyz_county-of-contra-costa_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{County of Contra Costa}}, year = {2026}, url = {https://4ort.xyz/entity/county-of-contra-costa}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): County of Contra Costa — https://4ort.xyz/entity/county-of-contra-costa (retrieved 2026-05-03)

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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. 5w ago · Mxn · 2026-05-24 view diff on Wikidata ↗
    Imported from → —
    Instance of → county government in California
    Country → United States
    Wikidata description → government of Contra Costa County, California, United States
    + 16 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P463]]: [[Q138812596]], [[:toollabs:quickstatements/#/batch/258464|batch #258464]]"
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