For the 2025 election, Cobourg was in the Riding of Northumberland-Clarke - formerly Northumberland-Peterborough South. This was formed after a re-distribution in 2023. See below for more on re-distribution.
Federal elections are managed by Elections Canada. Go here.
Redistribution
At the 2025 election, the boundaries changed from 2021. The new boundary is basically the same except it excludes Peterborough-South - it is now Northumberland plus a small extension in the West. It is called Northumberland-Clarke.
Candidates
For the next election - which could happen at any time since it's a minority Government - the Conservative candidate will presumably be the incumbent, Philip Lawrence. John Goheen announced on 16 July 2025 that he will be a candidate for nomination by the Liberal Party.
2025 Election Results
Northumberland—Clarke - validated (final)
| Party | Candidate | Votes | % |
| NDP - New Democratic Party | Ava Becker | 2090 | 2.9 % |
| People's Party - PPC | Lisa Bradburn | 521 | 0.7 % |
| Liberal | John Goheen | 32,648 | 45.9 % |
| Conservative | Philip Lawrence - elected | 34,862 | 49.0 % |
| Independent | Jody Ledgerwood | 270 | 0.4 % |
| Christian Heritage Party | John Wesselius | 171 | 0.2 % |
| Green Party | Christina Marie Wilson | 630 | 0.9 % |
| Total number of valid votes: | 71,192 | ||
Voter Turnout (Valid votes): 71,192 of 94,937 registered electors (74.98 %)
Population: 106,574
Number of electors on list: 94,937
Contact Information
Conservative Party
- Electoral District Association Web site - Northumberland-Clarke
- Philip Lawrence - MP for current riding: Northumberland Peterborough South - Web site
Liberal Party
- Electoral District Association - Facebook - Northumberland-Clarke
- Web site - Local Web page
NDP
- Electoral District Association - Federal - Facebook
Green Party
- National Site - Green Party of Canada - web page
- Green Party - Local Facebook
People's Party of Canada
Past Elections
2021 Results
Northumberland-Peterborough South
| Party | Candidate | Votes | % |
| Conservative | Philip Lawrence | 30,839 | 44.5 |
| Liberal | Alison Lester | 23,136 | 33.4 |
| New Democratic | Kim McArthur-Jackson | 9,760 | 14.1 |
| Green | Christina Wilson | 1,765 | 2.5 |
| People's Party | Nathan Lang | 3,785 | 5.5 |
Turnout: 69,285 69.1%
2019 Results
Northumberland-Peterborough South
| Party | Candidate | Votes | % |
| Conservative | Philip Lawrence | 27,385 | 39.7 |
| Liberal | Kim Rudd | 24,977 | 36.2 |
| New Democratic | Mallory MacDonald | 9,615 | 13.9 |
| Green | Jeff Wheeldon | 5,524 | 8.0 |
| People's Party | Frank Vaughan | 1,460 | 2.1 |
Turnout: 69,445 71.7%
2015 Results
Northumberland-Peterborough South
| Party | Candidate | Votes | % |
| Liberal | Kim Rudd | 27,043 | 42.5 |
| Conservative | Adam Moulton | 25,165 | 39.6 |
| New Democratic | Russ Christianson | 9,411 | 14.8 |
| Green | Patricia Sinnott | 1,990 | 3.1 |
Turnout: 63,876 71.67%
2011 Results
Northumberland Quinte West
| Party | Candidate | Votes | % |
| Conservative | Rick Norlock | 32,853 | 53.8 |
| Liberal | Kim Rudd | 12,822 | 21.0 |
| NDP | Russ Christianson | 12,626 | 20.7 |
| Green | Ralph Torrie | 2,733 | 4.5 |
Turnout: 61,218 63.7 %
In 2012, the Riding boundaries were changed so the 2011 election had different boundaries and an accurate comparison is not possible.