# Cambridge (provincial electoral district)

Cambridge is a provincial electoral district in southwestern, Ontario, Canada. It elects one member to the Legislative Assembly of Ontario.
It was created in 1975.
From 1987 to 1999, it consisted of the city of Cambridge plus that part the township of North Dumfries located directly to the east of Cambridge.
From 1999 to 2007 it consisted of Cambridge, North Dumfries plus the city of Kitchener east of a line following Homer Watson Boulevard to Doon Village Road to Homer Watson Boulevard again, then to Huron Road to the Grand River.
Since 2007, the riding has included only Cambridge and North Dumfries.

## Members of Provincial Parliament

Cambridge :
| Assembly | Years | Member | Party |
| Riding created |||||
| 30th | 1975–1977 | Monty Davidson | New Democratic |
| 31st | 1977–1981 | Monty Davidson | New Democratic |
| 32nd | 1981–1985 | Bill Barlow | Progressive Conservative |
| 33rd | 1985–1987 | Bill Barlow | Progressive Conservative |
| 34th | 1987–1990 | Michael Farnan | New Democratic |
| 35th | 1990–1995 | Michael Farnan | New Democratic |
| 36th | 1995–1999 | Gerry Martiniuk | Progressive Conservative |
| 37th | 1999–2003 | Gerry Martiniuk | Progressive Conservative |
| 38th | 2003–2007 | Gerry Martiniuk | Progressive Conservative |
| 39th | 2007–2011 | Gerry Martiniuk | Progressive Conservative |
| 40th | 2011–2014 | Rob Leone | Progressive Conservative |
| 41st | 2014–2018 | Kathryn McGarry | Liberal |
| 42nd | 2018–2020 | Belinda Karahalios | Progressive Conservative |
| 42nd | 2020–2021 | Belinda Karahalios | Independent |
| 42nd | 2021–2022 | Belinda Karahalios | New Blue |
| 43rd | 2022–present | Brian Riddell | Progressive Conservative |

## Election results

vte2025 Ontario general election :
| ** Preliminary results — Not yet official ** |||||||||
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Progressive Conservative | Brian Riddell | 19,195 | 43.7 | +6.7 |
| | Liberal | Rob Deutschmann | 15,121 | 34.4 | +13.7 |
| | New Democratic | Marjorie Knight | 5,073 | 11.6 | –10.7 |
| | Green | Carla Johnson | 2,515 | 5.7 | –3.3 |
| | New Blue | Belinda Karahalios | 2,025 | 4.6 | –6.5 |
| Total valid votes/expense limit | Total valid votes/expense limit | Total valid votes/expense limit | |
| Total rejected, unmarked, and declined ballots | Total rejected, unmarked, and declined ballots | Total rejected, unmarked, and declined ballots | |
| Turnout | Turnout | Turnout | | 45.9 | +2.7 |
| Eligible voters | Eligible voters | Eligible voters | 95,786 |
| | Progressive Conservative hold | Progressive Conservative hold | Swing | Swing | –3.5 |
| Source: Elections Ontario |||||||
vte2022 Ontario general election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Progressive Conservative | Brian Riddell | 14,590 | 37.03 | +0.06 | $84,737 |
| | New Democratic | Marjorie Knight | 8,745 | 22.19 | −10.30 | $54,806 |
| | Liberal | Surekha Shenoy | 8,155 | 20.70 | −2.55 | $77,446 |
| | New Blue | Belinda Karahalios | 4,374 | 11.10 | -25.87 | $98,338 |
| | Green | Carla Johnson | 3,537 | 8.98 | +2.71 | $14,902 |
| Total valid votes/expense limit | Total valid votes/expense limit | Total valid votes/expense limit | 39,401 | 99.52 | +0.81 | $128,747 |
| Total rejected, unmarked, and declined ballots | Total rejected, unmarked, and declined ballots | Total rejected, unmarked, and declined ballots | 190 | 0.48 | -0.81 |
| Turnout | Turnout | Turnout | 39,591 | 43.22 | -11.95 |
| Eligible voters | Eligible voters | Eligible voters | 91,954 |
| | Progressive Conservative gain from New Blue | Progressive Conservative gain from New Blue | Swing | Swing | +5.18 |
| Source(s) "Summary of Valid Votes Cast for Each Candidate" (PDF). Elections Ontario. 2022. Archived from the original on 2023-05-18."Statistical Summary by Electoral District" (PDF). Elections Ontario. 2022. Archived from the original on 2023-05-21. |||||||
2018 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Belinda Karahalios | 17,793 | 36.97% | +4.41 |
| | New Democratic | Marjorie Knight | 15,639 | 32.49% | +10.88 |
| | Liberal | Kathryn McGarry | 11,191 | 23.25% | -15.67 |
| | Green | Michele Braniff | 3,018 | 6.27% | +0.61 |
| | Libertarian | Allan Dettweiler | 490 | 1.02% | -0.24 |
| Total valid votes | Total valid votes | Total valid votes | | 100.0 |
| | Progressive Conservative gain from Liberal | Progressive Conservative gain from Liberal | Swing | Swing | - |
| Source: Elections Ontario |||||||
2014 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Liberal | Kathryn McGarry | 18,763 | 38.92 | +5.85 |
| | Progressive Conservative | Rob Leone | 15,694 | 32.56 | -5.13 |
| | New Democratic | Bobbi Stewart | 10,415 | 21.61 | -3.00 |
| | Green | Temara Brown | 2,726 | 5.66 | +3.16 |
| | Libertarian | Allan R. Dettweiler | 605 | 1.26 | -0.23 |
| Total valid votes | Total valid votes | Total valid votes | 48,203 | 100.0 |
| | Liberal gain from Progressive Conservative | Liberal gain from Progressive Conservative | Swing | Swing | +5.49 |
| Source: Elections Ontario |||||||
2011 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Rob Leone | 15,947 | 37.69 | -3.97 |
| | Liberal | Kathryn McGarry | 13,993 | 33.07 | -1.04 |
| | New Democratic | Atinuke Bankole | 10,414 | 24.61 | +10.81 |
| | Green | Jacques Malette | 1,056 | 2.50 | -6.43 |
| | Libertarian | Allan Dettweiler | 629 | 1.49 | |
| | Independent | Robert Ross | 271 | 0.64 | |
| Total valid votes | Total valid votes | Total valid votes | 42,310 | 100.00 |
| Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | Total rejected, unmarked and declined ballots | 187 | 0.44 |
| Turnout | Turnout | Turnout | 42,497 | 46.04 |
| Eligible voters | Eligible voters | Eligible voters | 92,310 |
| | Progressive Conservative hold | Progressive Conservative hold | Swing | Swing | -1.47 |
| Source: Elections Ontario |||||||
2007 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Gerry Martiniuk | 17,884 | 41.66 | -0.84 |
| | Liberal | Kathryn McGarry | 14,641 | 34.11 | -1.08 |
| | New Democratic | Mitchell Healey | 5,923 | 13.80 | -4.29 |
| | Green | Colin Carmichael | 3,835 | 8.93 | +6.84 |
| | Family Coalition | Paul Vendervet | 650 | 1.50 | -0.63 |
| Total valid votes | Total valid votes | Total valid votes | 42,933 | 100.00 |
2003 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Gerry Martiniuk | 19,996 | 42.50 | -12.34 |
| | Liberal | Jerry Boyle | 16,559 | 35.19 | +12.34 |
| | New Democratic | Pam Wolf | 8,513 | 18.09 | -1.28 |
| | Family Coalition | Al Smith | 1001 | 2.13 | +0.29 |
| | Green | Michael Chownyk | 983 | 2.09 | +1.00 |
| Total valid votes | Total valid votes | Total valid votes | 47,052 | 100.00 |
1999 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Gerry Martiniuk | 24,583 | 54.84 | +7.91 |
| | Liberal | Jerry Boyle | 10,244 | 22.85 | +7.61 |
| | New Democratic | Gary Gibson | 8,684 | 19.37 | -12.69 |
| | Family Coalition | Al Smith | 824 | 1.84 | -2.75 |
| | Green | Kathleen Morton | 489 | 1.09 | |
| Total valid votes | Total valid votes | Total valid votes | 44,824 | 100.00 |
1995 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Gerry Martiniuk | 17,269 | 46.93 | +34.63 |
| | New Democratic | Mike Farnan | 11,797 | 32.06 | -28.22 |
| | Liberal | Ben Tucci | 5,606 | 15.24 | -5.65 |
| | Family Coalition | Al Smith | 1,690 | 4.59 | -1.94 |
| | Independent | Reg Gervais | 433 | 1.18 | |
| Total valid votes | Total valid votes | Total valid votes | 36,795 | 100.0 |
1990 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | New Democratic | Mike Farnan | 21,806 | 60.28 | +25.79 |
| | Liberal | John Bell | 7,557 | 20.89 | -13.29 |
| | Progressive Conservative | Carl DeFaria | 4,449 | 12.30 | -14.45 |
| | Family Coalition | Anneliese Steden | 2,364 | 6.53 | +1.95 |
| Total valid votes | Total valid votes | Total valid votes | 36,176 | 100.0 |
1987 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | New Democratic | Mike Farnan | 11,284 | 34.49 | -3.01 |
| | Liberal | Claudette Millar | 11,183 | 34.18 | +12.02 |
| | Progressive Conservative | Bill Barlow | 8,752 | 26.75 | -13.59 |
| | Family Coalition | Anneliese Steden | 1,500 | 4.58 | |
| Total valid votes | Total valid votes | Total valid votes | 32,719 | 100.0 |
1985 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Bill Barlow | 12,888 | 40.34 | -2.48 |
| | New Democratic | Mike Farnan | 11,985 | 37.50 | -2.43 |
| | Liberal | Bob Jeffrey | 7,083 | 22.16 | +6.77 |
| Total valid votes | Total valid votes | Total valid votes | 31,956 | 100.0 |
1981 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | Progressive Conservative | Bill Barlow | 12,597 | 42.82 | +7.37 |
| | New Democratic | Monty Davidson | 11,748 | 39.93 | +2.62 |
| | Liberal | John Giles | 4,527 | 15.39 | -11.01 |
| | Independent | George Molson Barrett | 549 | 1.87 | |
| Total valid votes | Total valid votes | Total valid votes | 29,421 | 100.0 |
1977 Ontario general election :
| Party | Candidate | Votes | % | ±% |
| | New Democratic | Monty Davidson | 11,120 | 37.31 | -0.83 |
| | Progressive Conservative | Bill Barlow | 10,566 | 35.45 | +6.33 |
| | Liberal | Claudette Millar | 7,870 | 26.40 | -6.34 |
| | Independent | John Long | 252 | 0.85 | |
| Total valid votes | Total valid votes | Total valid votes | 29,808 | 100.0 |
1975 Ontario general election :
| Party | Candidate | Votes | % |
| | New Democratic | Monty Davidson | 11,255 | 38.14 |
| | Liberal | Claudette Millar | 9,662 | 32.74 |
| | Progressive Conservative | Ruggles Constant | 8,595 | 29.12 |
| Total valid votes | Total valid votes | Total valid votes | 29,512 | 100.0 |

## 2007 electoral reform referendum

2007 Ontario electoral reform referendum :
| Side | Votes | % |
| First Past the Post | 25,902 | 61.4 |
| Mixed member proportional | 16,260 | 38.6 |
| Total valid votes | 42,162 | 100.0 |

## Sources

* ↑ "Cambridge Unofficial Election Results". Elections Ontario. 28 February 2025. Retrieved 28 February 2025.
* ↑ "Summary of Valid Votes Cast for each Candidate" (PDF). Elections Ontario. Archived from the original (PDF) on 28 December 2018. Retrieved 16 January 2019.
* ↑ Elections Ontario (2014). "Official return from the records, 012 Cambridge" (PDF). Retrieved 27 June 2015.
* ↑ Elections Ontario (2011). "Official return from the records / Rapport des registres officiels - Cambridge" (PDF). Retrieved 2 June 2014.
* Elections Ontario Past Election Results
* Map of riding for 2018 election
43°20′53″N 80°20′06″W﻿ / ﻿43.348°N 80.335°W﻿ / 43.348; -80.335