Contra Costa County Board of Supervisors

E450309

county board of supervisors elected body local governing body

The Contra Costa County Board of Supervisors is the elected governing body responsible for setting policy, passing ordinances, and overseeing county services and administration in Contra Costa County, California.

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All labels observed (3)

Label	Occurrences
Contra Costa County Board of Supervisors canonical	17
Contra Costa County government	8
local government of Contra Costa County	1

How this entity was disambiguated

This entity first appeared as the object of triple T4536139 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Contra Costa County Board of Supervisors
Context triple: [Tara Hills, California, governingBody, Contra Costa County Board of Supervisors]

A. Solano County Board of Supervisors
The Solano County Board of Supervisors is the elected legislative and executive body that sets policy, enacts ordinances, and oversees the administration and budget of Solano County, California.
B. Alameda County Board of Supervisors
The Alameda County Board of Supervisors is the elected governing body responsible for setting policy, passing local laws, and overseeing county services and budgets in Alameda County, California.
C. San Mateo County Board of Supervisors
The San Mateo County Board of Supervisors is the elected governing body responsible for setting policy, passing ordinances, and overseeing the administration and budget of San Mateo County, California.
D. Santa Clara County Board of Supervisors
The Santa Clara County Board of Supervisors is the elected governing body that sets policy, enacts local laws, and oversees the administration and budget of Santa Clara County, California.
E. Contra Costa County Board of Supervisors District 5
Contra Costa County Board of Supervisors District 5 is an electoral district in Contra Costa County, California, represented by a county supervisor who governs and provides services for communities in the county’s northern and northeastern areas.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Contra Costa County Board of Supervisors
Target entity description: The Contra Costa County Board of Supervisors is the elected governing body responsible for setting policy, passing ordinances, and overseeing county services and administration in Contra Costa County, California.

A. Solano County Board of Supervisors
The Solano County Board of Supervisors is the elected legislative and executive body that sets policy, enacts ordinances, and oversees the administration and budget of Solano County, California.
B. Alameda County Board of Supervisors
The Alameda County Board of Supervisors is the elected governing body responsible for setting policy, passing local laws, and overseeing county services and budgets in Alameda County, California.
C. San Mateo County Board of Supervisors
The San Mateo County Board of Supervisors is the elected governing body responsible for setting policy, passing ordinances, and overseeing the administration and budget of San Mateo County, California.
D. Santa Clara County Board of Supervisors
The Santa Clara County Board of Supervisors is the elected governing body that sets policy, enacts local laws, and oversees the administration and budget of Santa Clara County, California.
E. Contra Costa County Board of Supervisors District 5
Contra Costa County Board of Supervisors District 5 is an electoral district in Contra Costa County, California, represented by a county supervisor who governs and provides services for communities in the county’s northern and northeastern areas.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	county board of supervisors ⓘ elected body ⓘ local governing body ⓘ
country	United States of America ⓘ
decisionMakingProcess	majority vote ⓘ
electoralSystem	single-member districts ⓘ
governingBodyOf	Contra Costa County, California ⓘ linked to: Contra Costa County
governs	Contra Costa County, California ⓘ linked to: Contra Costa County
hasAuthorityOver	countywide emergency declarations ⓘ countywide tax allocation within legal limits ⓘ creation of county ordinances ⓘ
hasChairperson	Board chair of Contra Costa County Board of Supervisors ⓘ
hasGovernmentalFunction	adopts county budget ⓘ infrastructure and transportation oversight ⓘ land use and zoning decisions for unincorporated areas ⓘ oversees county administration ⓘ oversees county services ⓘ passes ordinances ⓘ public health policy oversight ⓘ public safety oversight ⓘ sets county policy ⓘ sets countywide priorities ⓘ social services oversight ⓘ
hasJurisdiction	unincorporated areas of Contra Costa County ⓘ
hasMeetingType	public meetings ⓘ
hasNumberOfMembers	5 ⓘ
hasViceChairperson	vice chair of Contra Costa County Board of Supervisors ⓘ
isElectedBy	voters of Contra Costa County ⓘ
isPartOf	local government of Contra Costa County ⓘ linked to: Contra Costa County Board of Supervisors
languageOfWork	English ⓘ
legalBasis	California Government Code ⓘ Constitution of the State of California ⓘ linked to: Constitution of California
levelOfGovernment	county ⓘ
locatedIn	Contra Costa County, California ⓘ linked to: Contra Costa County
overseesBudgetOf	Contra Costa County government ⓘ
represents	five supervisorial districts in Contra Costa County ⓘ
responsibleFor	implementation of county ordinances ⓘ implementation of county policies ⓘ
sector	public administration ⓘ
state	California ⓘ linked to: California, United States
subjectTo	California Public Records Act ⓘ California open meeting laws ⓘ
supervises	Contra Costa County Administrator ⓘ departments of Contra Costa County government ⓘ
worksWith	Contra Costa County elected officials ⓘ cities within Contra Costa County ⓘ

How these facts were elicited