Northumberland—Clarke (formerly Northumberland—Peterborough South) is a federal

electoral district An electoral (congressional, legislative, etc.) district, sometimes called a constituency, riding, or ward, is a geographical portion of a political unit, such as a country, state or province, city, or administrative region, created to provi ...

Ontario Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...

. Northumberland—Peterborough South was created by the 2012 federal electoral boundaries redistribution and was legally defined in the 2013 representation order. It came into effect upon the call of the 42nd Canadian federal election, scheduled for 19 October 2015. 77% of the riding was formed from Northumberland—Quinte West, 13% from Durham and 10% from

Peterborough Peterborough ( ) is a City status in the United Kingdom, cathedral city in the City of Peterborough district in the Ceremonial counties of England, ceremonial county of Cambridgeshire, England. The city is north of London, on the River Nene. A ...

. The riding was originally intended to be named Northumberland—Pine Ridge. Under the

2022 Canadian federal electoral redistribution A redistribution of federal electoral districts ("ridings") began in Canada following the results of the 2021 Canadian census. The Constitution of Canada requires that federal electoral districts that compose the House of Commons undergo a re ...

the riding will lose its territory in Peterborough County, the townships of Asphodel-Norwood and Otonabee-South Monaghan, to the

riding. As such, it was renamed Northumberland—Clarke at the 2025 federal election.

Geography

The riding is located in

Central Ontario Central Ontario is a secondary region of Southern Ontario in the Canadian province of Ontario that lies between Georgian Bay and the eastern end of Lake Ontario. The population of the region was 1,123,307 in 2016; however, this number does not in ...

along

Lake Ontario Lake Ontario is one of the five Great Lakes of North America. It is bounded on the north, west, and southwest by the Canadian province of Ontario, and on the south and east by the U.S. state of New York (state), New York. The Canada–United Sta ...

. It contains the entirety of Northumberland County, southern

and the eastern half of the municipality of

Clarington Clarington (Canada 2021 Census, 2021 population 101,427) is a lower-tier municipality in the Regional Municipality of Durham in Ontario, Canada. It was incorporated in 1973 as the town of Newcastle with the merging of the town of Bowmanville, the ...

Demographics

:''According to the

2021 Canadian census The 2021 Canadian census was a detailed enumeration of the Canada, Canadian population with a reference date of May 11, 2021. It follows the 2016 Canadian census, which recorded a population of 35,151,728. The overall response rate was 98%, whic ...

'' Ethnic groups: 89.8% White, 5.1% Indigenous, 1.2% Black, 1.1% South Asian
Languages: 92.6% English, 1.3% French
Religions: 54.1% Christian (17.6% Catholic, 11.3% United Church, 7.6% Anglican, 2.4% Presbyterian, 1.8% Baptist, 1.2% Pentecostal, 12.2% Other), 43.8% None
Median income: $41,600 (2020)
Average income: $53,100 (2020)

Members of Parliament

This riding has elected the following members of Parliament:

Election results

References

{{DEFAULTSORT:Northumberland-Peterborough South Ontario federal electoral districts Clarington Cobourg Politics of Peterborough, Ontario

Geography

Demographics

Members of Parliament

Election results

See also

References