Regional Municipality of Durham

E104351

regional municipality upper-tier municipality

The Regional Municipality of Durham is a large upper-tier municipal region in Ontario, Canada, encompassing several cities and towns east of Toronto and providing regional services such as transit, policing, and planning.

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All labels observed (6)

Label	Occurrences
Durham Region	78
Regional Municipality of Durham canonical	32
Durham Regional Municipality	9
Durham Regional Council	4
Durham Region, Ontario	2
Municipality of Clarington	1

How this entity was disambiguated

This entity first appeared as the object of triple T842914 — 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: Regional Municipality of Durham
Context triple: [Greater Toronto Area, contains, Regional Municipality of Durham]

A. Regional Municipality of Peel
The Regional Municipality of Peel is a large upper-tier municipal government in Ontario, Canada, encompassing the cities of Mississauga and Brampton and the town of Caledon within the Greater Toronto Area.
B. Durham region
Durham region is an area in North Carolina known for its strong local support of the minor league baseball team, the Durham Bulls.
C. Halton
Halton is a local government borough in Cheshire, England, encompassing the towns of Runcorn and Widnes along the River Mersey.
D. Renfrew—Nipissing—Pembroke
Renfrew—Nipissing—Pembroke is a federal electoral district in eastern Ontario, Canada, encompassing a largely rural area northwest of Ottawa that is represented in the House of Commons.
E. York Region, Ontario
York Region, Ontario is a rapidly growing regional municipality north of Toronto that encompasses a mix of suburban communities, urban centers, and rural areas within the Greater Toronto Area.
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: Regional Municipality of Durham
Target entity description: The Regional Municipality of Durham is a large upper-tier municipal region in Ontario, Canada, encompassing several cities and towns east of Toronto and providing regional services such as transit, policing, and planning.

A. Regional Municipality of Peel
The Regional Municipality of Peel is a large upper-tier municipal government in Ontario, Canada, encompassing the cities of Mississauga and Brampton and the town of Caledon within the Greater Toronto Area.
B. Durham region
Durham region is an area in North Carolina known for its strong local support of the minor league baseball team, the Durham Bulls.
C. Halton
Halton is a local government borough in Cheshire, England, encompassing the towns of Runcorn and Widnes along the River Mersey.
D. Renfrew—Nipissing—Pembroke
Renfrew—Nipissing—Pembroke is a federal electoral district in eastern Ontario, Canada, encompassing a largely rural area northwest of Ottawa that is represented in the House of Commons.
E. York Region, Ontario
York Region, Ontario is a rapidly growing regional municipality north of Toronto that encompasses a mix of suburban communities, urban centers, and rural areas within the Greater Toronto Area.
F. None of above. chosen

Statements (44)

Predicate	Object
instanceOf	regional municipality ⓘ upper-tier municipality ⓘ
borderedBy	City of Kawartha Lakes ⓘ Toronto ⓘ surface form: City of Toronto Lake Ontario ⓘ Northumberland County, Ontario ⓘ Regional Municipality of York ⓘ
country	Canada ⓘ
dateOfEstablishment	1974 ⓘ
formedFrom	Ontario County, Ontario ⓘ
governingBody	Regional Municipality of Durham self-linksurface differs ⓘ surface form: Durham Regional Council
governmentType	regional government ⓘ
hasAdministrativeSeat	Whitby, Ontario ⓘ
hasMajorHighway	Highway 401 ⓘ Highway 407 ETR ⓘ surface form: Highway 407 Highway 412 NERFINISHED ⓘ Highway 418 ⓘ
hasMajorUrbanCentre	Oshawa ⓘ surface form: Oshawa, Ontario
hasMunicipality	Oshawa ⓘ surface form: City of Oshawa City of Pickering ⓘ Regional Municipality of Durham self-linksurface differs ⓘ surface form: Municipality of Clarington Town of Ajax ⓘ Whitby, Ontario ⓘ surface form: Town of Whitby Township of Brock ⓘ Township of Scugog ⓘ Township of Uxbridge ⓘ
hasOfficialWebsite	https://www.durham.ca/ ⓘ
locatedEastOf	Toronto ⓘ surface form: City of Toronto
locatedIn	Greater Toronto Area ⓘ Ontario ⓘ Southern Ontario ⓘ
locatedOn	north shore of Lake Ontario ⓘ
observesDaylightSavingTime	yes ⓘ
officialLanguage	English ⓘ
partOf	Greater Golden Horseshoe ⓘ surface form: Golden Horseshoe
policeService	Durham Regional Police Service ⓘ
providesService	land-use planning ⓘ regional policing ⓘ regional transit ⓘ social services ⓘ water and wastewater services ⓘ
subdivisionType	regional municipality of Ontario ⓘ
timeZone	Eastern Time Zone ⓘ
transitOperator	Durham Region Transit ⓘ

How these facts were elicited