# Canadian federal election results in Southern Durham and York

Seats obtained by party :
* Liberal
* Conservative
* New Democratic
* Progressive Conservative (defunct)
* Independents
Canadian federal elections have provided the following results in the suburban sections of Durham and York Regions.

## Regional profile

The region is within the 905 Area Code (often referred to as the "905 belt"), and is populated predominantly by middle class, suburban voters. After leaning Liberal from 1968 to 1974, the area tilted conservative in the late 1970s and 1980s, when it only had three seats, helping the PCs win two majority governments in the 1980s. Support for the Co-operative Commonwealth Federation and the New Democratic Party, however, was heavy in the unionist city of Oshawa, especially when popular NDP leader Ed Broadbent held that seat from the late 1960s to late 1980s.
However, rapid growth of the Greater Toronto Area accompanied with an influx of immigrants and urban professionals turned the region into a Liberal stronghold, similar to the outer areas of the City of Toronto and the Mississauga-Brampton-Oakville area to the west of Toronto. The only standout being the election of a PC MP in Markham in 1997. By 2000, the Liberals swept all seven of its seats and its provincial rejection of the Tories in 2003 helped to secure Dalton McGuinty's provincial liberal landslide majority.
In 2006, the Liberals easily held onto most of the seats, with the exception of Oshawa and Whitby—Oshawa, which were taken by the Conservatives. In 2008, the Conservatives gained another two seats, Thornhill and Oak Ridges—Markham, and in a 2010 by-election the riding of Vaughan. In 2011, the Conservatives took another 3 seats (Ajax—Pickering, Pickering—Scarborough East and Richmond Hill); leaving the Liberals with one seat of nine in the area - Markham—Unionville. In 2015, however, the meltdown of Tory support in southern Ontario saw the Liberals seize all but three of the region's 12 seats, those being Oshawa, Thornhill, and - surprisingly - Markham—Unionville, a riding with historically low Conservative support.
The region saw very little change in votes shares the 2019 and 2021 elections. The Conservatives flipped Aurora—Oak Ridges—Richmond Hill in a 2018 by-election, retained it in 2019 but lost it to the Liberals in 2021 along with Markham—Unionville whereby King—Vaughan went in the other direction.

### Votes by party throughout time

| Election | Liberal | Conservative | New Democratic | Green | People's | PC | Reform / Alliance | Others |
| 1979 | 46,819 28.2% | — | 48,191 29.0% | — | — | 69,963 42.1% | — | 1,087 0.7% |
| 1980 | 49,904 31.1% | — | 48,506 30.2% | — | — | 60,647 37.8% | — | 1,053 0.7% |
| 1984 | 43,272 20.6% | — | 48,164 22.9% | — | — | 86,146 41.0% | — | 32,609 15.5% |
| 1988 | 91,073 33.7% | — | 48,953 18.1% | — | — | 123,118 45.6% | — | 6,724 2.5% |
| 1993 | 161,775 50.5% | — | 13,546 4.2% | 402 0.1% | — | 58,191 18.2% | 78,006 24.3% | 8,247 2.6% |
| 1997 | 168,932 50.7% | — | 21,431 6.4% | — | — | 80,670 24.2% | 57,717 17.3% | 4,352 1.3% |
| 2000 | 201,228 59.3% | — | 14,428 4.3% | 2,179 0.6% | — | 46,504 13.7% | 73,092 21.5% | 1,259 0.4% |
| 2004 | 238,824 52.8% | 136,942 30.3% | 55,992 12.4% | 17,411 3.8% | — | — | — | 1,603 0.4% |
| 2006 | 254,659 48.7% | 178,165 34.1% | 65,685 12.6% | 20,380 3.9% | — | — | — | 2,248 0.4% |
| 2008 | 195,238 40.5% | 192,317 39.9% | 60,008 12.5% | 32,056 6.7% | — | — | — | 1,921 0.4% |
| 2011 | 149,405 27.8% | 268,791 50.0% | 100,359 18.7% | 16,941 3.2% | — | — | — | 750 0.1% |
| 2015 | 296,204 45.6% | 277,441 42.7% | 62,307 9.6% | 11,639 1.8% | — | — | — | 1,657 0.3% |
| 2019 | 300,748 43.7% | 264,352 38.4% | 72,853 10.6% | 27,249 4.0% | 8,303 1.2% | — | — | 14,607 2.1% |
| 2021 | 275,282 45.3% | 232,987 38.4% | 67,738 11.2% | 8,175 1.3% | 21,691 3.6% | — | — | 1,464 0.2% |

## Detailed results
### 2015

| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent | Incumbent |
| Electoral district | Conservative | Conservative | NDP | NDP | Liberal | Liberal | Green | Green | Other | Other | | Incumbent | Incumbent |
| Ajax | | Chris Alexander 19,374 34.41% | | Stephanie Brown 4,630 8.22% | | Mark Holland 31,458 55.87% | | Jeff Hill 788 1.40% | | Bob Kesic (United) 57 0.10% | | Chris Alexander Ajax—Pickering |
| Aurora—Oak Ridges— Richmond Hill | | Costas Menegakis 23,039 45.19% | | Brenda Power 2,912 5.71% | | Leona Alleslev 24,132 47.34% | | Randi Ramdeen 654 1.28% | | Kyle Bowles (Animal All.) 243 0.48% | New District | New District |
| King—Vaughan | | Konstantin Toubis 24,170 44.20% | | Natalie Rizzo 3,571 6.53% | | Deb Schulte 25,908 47.38% | | Ann Raney 1,037 1.90% | | | New District | New District |
| Markham—Stouffville | | Paul Calandra 25,565 42.77% | | Gregory Hines 3,647 6.10% | | Jane Philpott 29,416 49.21% | | Myles O'Brien 1,145 1.92% | | | | Paul Calandra Oak Ridges—Markham |
| Markham—Thornhill | | Jobson Easow 13,849 32.31% | | Senthi Chelliah 4,595 10.72% | | John McCallum 23,878 55.72% | | Joshua Russell 535 1.25% | | | New District | New District |
| Markham—Unionville | | Bob Saroya 24,605 49.37% | | Colleen Zimmerman 2,528 5.07% | | Bang-Gu Jiang 21,596 43.33% | | Elvin Kao 1,110 2.23% | | | | John McCallum‡ |
| Oshawa | | Colin Carrie 23,162 38.17% | | Mary Fowler 19,339 31.87% | | Tito-Dante Marimpietri 16,588 27.33% | | Michael Dempsey 1,522 2.51% | | David Gershuny (M-L) 75 0.12% | | Colin Carrie |
| Pickering—Uxbridge | | Corneliu Chisu 22,591 38.19% | | Pamela Downward 5,446 9.21% | | Jennifer O'Connell 29,757 50.30% | | Anthony Jordan Navarro 1,365 2.31% | | | | Corneliu Chisu Pickering—Scarborough East |
| Richmond Hill | | Michael Parsa 21,275 43.32% | | Adam DeVita 3,950 8.04% | | Majid Jowhari 23,032 46.90% | | Gwendolyn Veenema 856 1.74% | | | | Costas Menegakis‡ |
| Thornhill | | Peter Kent 31,911 58.56% | | Lorne Cherry 2,814 5.16% | | Nancy Coldham 18,395 33.76% | | Josh Rachlis 627 1.15% | | Gene Balfour (Libert.) 587 1.08% | | Peter Kent |
| Thornhill | | Peter Kent 31,911 58.56% | | Lorne Cherry 2,814 5.16% | | Nancy Coldham 18,395 33.76% | | Josh Rachlis 627 1.15% | | Margaret Leigh Fairbairn (Seniors) 157 0.29% | | Peter Kent |
| Vaughan—Woodbridge | | Julian Fantino 20,746 43.86% | | Adriana Marie Zichy 2,198 4.65% | | Francesco Sorbara 23,041 48.71% | | Elise Boulanger 597 1.26% | | Anthony Gualtieri (Libert.) 716 1.51% | | Julian Fantino Vaughan |
| Whitby | | Pat Perkins 27,154 42.09% | | Ryan Kelly 6,677 10.35% | | Celina Caesar-Chavannes 29,003 44.95% | | Craig Cameron 1,403 2.17% | | Jon O'Connor (Ind.) 279 0.43% | | Pat Perkins Whitby—Oshawa |

### 2011

| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent |
| Electoral district | Conservative | Conservative | Liberal | Liberal | NDP | NDP | Green | Green | Other | Other | Incumbent | Incumbent |
| Ajax—Pickering | | Chris Alexander 24,797 44.07% | | Mark Holland 21,569 38.33% | | Jim Koppens 8,270 14.70% | | Mike Harilaid 1,561 2.77% | | Bob Kesic (United) 71 0.13% | Mark Holland |
| Markham—Unionville | | Bob Saroya 17,734 35.55% | | John McCallum 19,429 38.95% | | Nadine Marie Hawkins 10,897 21.84% | | Adam Poon 1,597 3.20% | | Allen Small (Libert.) 231 0.46% | John McCallum |
| Oak Ridges—Markham | | Paul Calandra 46,241 51.12% | | Lui Temelkovski 25,561 28.26% | | Janice Hagan 15,229 16.84% | | Trifon Haitas 2,349 2.60% | | John Siciliano (PC) 1,080 1.19% | Paul Calandra |
| Oshawa | | Colin Carrie 26,034 51.31% | | James Cooper Morton 3,536 6.97% | | Chris Buckley 19,212 37.87% | | Gail Bates 1,631 3.21% | | Matthew Belanger (Libert.) 260 0.51% | Colin Carrie |
| Oshawa | | Colin Carrie 26,034 51.31% | | James Cooper Morton 3,536 6.97% | | Chris Buckley 19,212 37.87% | | Gail Bates 1,631 3.21% | | David Gershuny (M-L) 61 0.12% | Colin Carrie |
| Pickering— Scarborough East | | Corneliu Chisu 19,220 40.11% | | Dan McTeague 18,013 37.59% | | Andrea Moffat 8,932 18.64% | | Kevin Smith 1,751 3.65% | | | Dan McTeague |
| Richmond Hill | | Costas Menegakis 22,078 44.14% | | Bryon Wilfert 17,671 35.33% | | Adam DeVita 8,433 16.86% | | Cameron W. Hastings 1,832 3.66% | | | Bryon Wilfert |
| Thornhill | | Peter Kent 36,629 61.38% | | Karen Mock 14,125 23.67% | | Simon Strelchik 7,141 11.97% | | Norbert Koehl 1,562 2.62% | | Liz White (AAEVP) 215 0.36% | Peter Kent |
| Vaughan | | Julian Fantino 38,533 56.32% | | Mario Ferri 20,435 29.87% | | Mark Pratt 7,940 11.60% | | Claudia Rodriguez-Larrain 1,515 2.21% | | | Julian Fantino |
| Whitby—Oshawa | | Jim Flaherty 37,525 58.42% | | Trevor Bardens 9,066 14.11% | | Trish McAuliffe 14,305 22.27% | | Rebecca Harrison 3,143 4.89% | | Josh Insang (Libert.) 198 0.31% | Jim Flaherty |

### 2008

| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent |
| Electoral district | Conservative | Conservative | Liberal | Liberal | NDP | NDP | Green | Green | Other | Other | Incumbent | Incumbent |
| Ajax—Pickering | | Rick Johnson 18,471 37.95% | | Mark Holland 21,675 44.53% | | Bala Thavarajasoorier 4,422 9.08% | | Mike Harilaid 3,543 7.28% | | Kevin Norng (CHP) 398 0.82% | Mark Holland |
| Ajax—Pickering | | Rick Johnson 18,471 37.95% | | Mark Holland 21,675 44.53% | | Bala Thavarajasoorier 4,422 9.08% | | Mike Harilaid 3,543 7.28% | | Stephanie Wilson (Libert.) 167 0.34% | Mark Holland |
| Markham—Unionville | | Duncan Fletcher 13,855 30.13% | | John McCallum 25,296 55.02% | | Nadine Hawkins 4,682 10.18% | | Leonard Aitken 1,921 4.18% | | Allen Small (Libert.) 225 0.49% | John McCallum |
| Oak Ridges—Markham | | Paul Calandra 32,028 42.24% | | Lui Temelkovski 31,483 41.52% | | Andy Arifin 7,126 9.40% | | Richard Taylor 5,184 6.84% | | | Lui Temelkovski |
| Oshawa | | Colin Carrie 19,951 41.37% | | Sean Godfrey 7,741 16.05% | | Mike Shields 16,750 34.73% | | Pat Gostlin 3,374 7.00% | | David Gershuny (M-L) 117 0.24% | Colin Carrie |
| Oshawa | | Colin Carrie 19,951 41.37% | | Sean Godfrey 7,741 16.05% | | Mike Shields 16,750 34.73% | | Pat Gostlin 3,374 7.00% | | Alex Kreider (CAP) 52 0.11% | Colin Carrie |
| Oshawa | | Colin Carrie 19,951 41.37% | | Sean Godfrey 7,741 16.05% | | Mike Shields 16,750 34.73% | | Pat Gostlin 3,374 7.00% | | Peter Vogel (CHP) 246 0.51% | Colin Carrie |
| Pickering— Scarborough East | | George Khouri 14,940 32.45% | | Dan McTeague 22,874 49.69% | | Andrea Moffat 4,875 10.59% | | Jason Becevello 3,023 6.57% | | Rick Chue (CHP) 191 0.41% | Dan McTeague |
| Pickering— Scarborough East | | George Khouri 14,940 32.45% | | Dan McTeague 22,874 49.69% | | Andrea Moffat 4,875 10.59% | | Jason Becevello 3,023 6.57% | | Chai Kalevar (CAP) 130 0.28% | Dan McTeague |
| Richmond Hill | | Chungsen Leung 16,318 35.69% | | Bryon Wilfert 21,488 47.00% | | Wess Dowsett 4,526 9.90% | | Dylan Marando 3,388 7.41% | | | Bryon Wilfert |
| Thornhill | | Peter Kent 26,660 49.01% | | Susan Kadis 21,448 39.43% | | Simon Strelchik 3,601 6.62% | | Norbert Koehl 2,686 4.94% | | | Susan Kadis |
| Vaughan | | Richard Lorello 19,390 34.33% | | Maurizio Bevilacqua 27,773 49.18% | | Vicky Wilkin 5,442 9.64% | | Adrian Visentin 3,870 6.85% | | | Maurizio Bevilacqua |
| Whitby—Oshawa | | Jim Flaherty 30,704 50.99% | | Brent Fullard 15,460 25.68% | | David Purdy 8,584 14.26% | | Doug Anderson 5,067 8.42% | | Yvonne Forbes (CHP) 395 0.66% | Jim Flaherty |

### 2006

| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent |
| Electoral district | Liberal | Liberal | Conservative | Conservative | NDP | NDP | Green | Green | Other | Other | Incumbent | Incumbent |
| Ajax—Pickering | | Mark Holland 25,636 49.38% | | Rondo Thomas 16,992 32.73% | | Kevin Modeste 6,655 12.82% | | Russell Korus 2,199 4.24% | | Kevin Norng (CHP) 435 0.84% | Mark Holland |
| Markham—Unionville | | John McCallum 32,769 61.89% | | Joe Li 14,153 26.73% | | Janice Hagan 4,257 8.04% | | Wesley Weese 1,146 2.16% | | Fayaz Choudhary (PC) 321 0.61% | John McCallum |
| Markham—Unionville | | John McCallum 32,769 61.89% | | Joe Li 14,153 26.73% | | Janice Hagan 4,257 8.04% | | Wesley Weese 1,146 2.16% | | Partap Dua (Ind.) 297 0.56% | John McCallum |
| Oak Ridges—Markham | | Lui Temelkovski 35,083 47.06% | | Bob Callow 28,683 38.47% | | Pamela Courtout 7,367 9.88% | | Steve Armes 3,423 4.59% | | | Lui Temelkovski |
| Oshawa | | Louise Parkes 12,831 23.98% | | Colin Carrie 20,657 38.61% | | Sid Ryan 17,905 33.47% | | Adam Jobse 2,019 3.77% | | David Gershuny (M-L) 91 0.17% | Colin Carrie |
| Pickering— Scarborough East | | Dan McTeague 27,719 52.68% | | Tim Dobson 16,693 31.73% | | Gary Dale 6,090 11.57% | | Jeff Brownridge 1,869 3.55% | | Pedro Gonsalves (Ind.) 176 0.33% | Dan McTeague |
| Pickering— Scarborough East | | Dan McTeague 27,719 52.68% | | Tim Dobson 16,693 31.73% | | Gary Dale 6,090 11.57% | | Jeff Brownridge 1,869 3.55% | | Chai Kalevar (CAP) 70 0.13% | Dan McTeague |
| Richmond Hill | | Bryon Wilfert 27,837 53.58% | | Joe Di Paola 16,564 31.88% | | Wess Dowsett 5,176 9.96% | | Tim Rudkins 2,379 4.58% | | | Bryon Wilfert |
| Thornhill | | Susan Kadis 29,934 53.10% | | Anthony Reale 19,005 33.71% | | Simon Strelchik 4,405 7.81% | | Lloyd Helferty 1,934 3.43% | | Mark Abramowitz (PC) 1,094 1.94% | Susan Kadis |
| Vaughan | | Maurizio Bevilacqua 36,968 59.72% | | Richard Majkot 16,124 26.05% | | Yurgo Alexopoulos 5,114 8.26% | | Adrian Visentin 3,004 4.85% | | Paolo Fabrizio (Libert.) 688 1.11% | Maurizio Bevilacqua |
| Whitby—Oshawa | | Judi Longfield 25,882 38.75% | | Jim Flaherty 29,294 43.86% | | Maret Sadem-Thompson 8,716 13.05% | | Ajay Krishnan 2,407 3.60% | | Tom Cochrane (CAP) 217 0.32% | Judi Longfield |
| Whitby—Oshawa | | Judi Longfield 25,882 38.75% | | Jim Flaherty 29,294 43.86% | | Maret Sadem-Thompson 8,716 13.05% | | Ajay Krishnan 2,407 3.60% | | Marty Gobin (Libert.) 274 0.41% | Judi Longfield |
| Key map | Ajax-Pickering Markham-Unionville Oak Ridges-Markham Oshawa Pickering-Scarborough East Richmond Hill Thornhill Vaughan Whitby-Oshawa |

### 2004
#### Party rankings

For the first time since 1988 the Liberals ranked third in a riding of the region (in Oshawa) whereas the NDP achieved its first second position since that date.
| Parties | 1st | 2nd | 3rd | 4th |
| Liberal | 8 | 0 | 1 | 0 |
| Conservative | 1 | 7 | 0 | 0 |
| New Democratic | 0 | 1 | 6 | 0 |
| Green | 0 | 0 | 0 | 7 |
| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent | Incumbent |
| Electoral district | Liberal | Liberal | Conservative | Conservative | NDP | NDP | Green | Green | Other | Other | | Incumbent | Incumbent |
| Ajax—Pickering | | Mark Holland 21,706 | | René Soetens 14,666 | | Kevin Modeste 5,286 | | Karen MacDonald 1,951 | | | New district | New district |
| Markham—Unionville | | John McCallum 30,442 | | Joe Li 10,325 | | Janice Hagan 3,993 | | Ed Wong 1,148 | | | | John McCallum Markham |
| Oak Ridges—Markham | | Lui Temelkovski 31,964 | | Bob Callow 20,712 | | Pamela Courtot 5,430 | | Bernadette Manning 2,406 | | Jim Conrad (PC) 820 Maurice Whittle (CHP) 458 | New district | New district |
| Oshawa | | Louise Parkes 14,510 | | Colin Carrie 15,815 | | Sid Ryan 15,352 | | Liisa Whalley 1,850 | | Tim Sullivan (M-L) 91 | | Ivan Grose |
| Pickering—Scarborough East | | Dan McTeague 27,312 | | Tim Dobson 13,417 | | Gary Dale 5,392 | | Matthew Pollesel 1,809 | | | | Dan McTeague Pickering—Ajax—Uxbridge |
| Richmond Hill | | Bryon Wilfert 27,102 | | Peter Merrifield 11,530 | | Nella Cotrupi 4,495 | | Tim Rudkins 2,144 | | Ellena Lam (PC) 1,074 | | Bryon Wilfert Oak Ridges |
| Thornhill | | Susan Kadis 28,709 | | Josh Cooper 18,125 | | Rick Morelli 3,671 | | Lloyd Helferty 1,622 | | Simion Iron (Ind.) 233 Benjamin Fitzerman (Ind.) 241 | | Elinor Caplan |
| Vaughan | | Maurizio Bevilacqua 31,430 | | Joe Spina 11,821 | | Octavia Beckles 4,371 | | Russell Korus 1,722 | | Paolo Fabrizio (Libert.) 388 Walter Aolari (CAP) 192 | | Maurizio Bevilacqua Vaughan—King—Aurora |
| Whitby—Oshawa | | Judi Longfield 25,649 | | Ian MacNeil 20,531 | | Maret Sadem-Thompson 8,002 | | Michael MacDonald 2,759 | | | | Judi Longfield Whitby—Ajax |

#### Maps
### 2000
#### Party rankings

The Liberal easily won in all 7 ridings with significant margins. The Canadian Alliance was able to significantly distance the Progressive Conservatives (who had arrived first or second in most ridings in 1997) ranking second in all 7 ridings.
| Parties | 1st | 2nd | 3rd | 4th |
| Liberal | 7 | 0 | 0 | 0 |
| Alliance | 0 | 7 | 0 | 0 |
| Progressive Conservative | 0 | 0 | 7 | 0 |
| New Democratic | 0 | 0 | 0 | 7 |
| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent |
| Electoral district | Liberal | Liberal | Canadian Alliance | Canadian Alliance | NDP | NDP | PC | PC | Other | Other | Incumbent | Incumbent |
| Markham | | John McCallum 32,104 66.64% | | Jim Jones 9,015 18.71% | | Janice Hagan 1,129 2.34% | | David Scrymgeour 5,085 10.55% | | Akber Choudhry (Ind.) 222 0.46% Jim Conrad (CAP) 130 0.27% Bernadette Manning (Green) 493 1.02% | Jim Jones |
| Oak Ridges | | Bryon Wilfert 33,058 59.41% | | Bob Callow 11,714 21.05% | | Joseph Thevarkunnel 1,623 2.92% | | John Oostrom 8,409 15.11% | | Steven Haylestrom (Green) 672 1.21% Mary Wan (NLP) 172 0.31% | Bryon Wilfert |
| Oshawa | | Ivan Grose 16,179 42.92% | | Barry Bussey 10,863 28.82% | | Bruce Rogers 4,203 11.15% | | Bruce L. Wright 5,675 15.05% | | David Gershuny (M-L) 97 0.26% Craig James Michael McMillan (Mar.) 679 1.80% | Ivan Grose |
| Pickering—Ajax—Uxbridge | | Dan McTeague 28,834 57.44% | | Ken Griffith 11,941 23.79% | | Ralph Chatoor 1,523 3.03% | | Michael Hills 6,883 13.71% | | Chris Pennington (Green) 1,014 2.02% | Dan McTeague |
| Thornhill | | Elinor Caplan 27,152 64.59% | | Robert Goldin 6,643 15.80% | | Nathan Rotman 1,653 3.93% | | Lou Watson 6,338 15.08% | | Art Jaszczyk (CAP) 254 0.60% | Elinor Caplan |
| Vaughan—King—Aurora | | Maurizio Bevilacqua 38,208 67.22% | | Adrian Visentin 9,757 17.17% | | Octavia Beckles 1,938 3.41% | | Menotti Mazzuca 6,551 11.53% | | Lesley Knight (NA) 384 0.68% | Maurizio Bevilacqua |
| Whitby—Ajax | | Judi Longfield 25,693 52.68% | | Shaun Gillespie 13,159 26.98% | | Vic Perroni 2,359 4.84% | | Rob Chopowick 7,563 15.51% | | | Judi Longfield |

### 1997
#### Party rankings

| Parties | 1st | 2nd | 3rd | 4th |
| Liberal | 6 | 1 | 0 | 0 |
| Progressive Conservative | 1 | 4 | 2 | 0 |
| Reform | 0 | 2 | 5 | 0 |
| New Democratic | 0 | 0 | 0 | 7 |
| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent | Incumbent |
| Electoral district | Liberal | Liberal | Reform | Reform | NDP | NDP | PC | PC | Other | Other | | Incumbent | Incumbent |
| Markham | | Gobinder Randhawa 16,810 | | John Paloc 4,947 | | Bhanu Gaunt 1,482 | | Jim Jones 20,449 | 2,060 | 2,060 | | Jag Bhaduria Markham—Whitchurch-Stouffville |
| Oak Ridges | | Bryon Wilfert 27,394 | | Edward Sarafian 7,568 | | Wynne Hartviksen 2,411 | | John Andersen 12,232 | 448 | 448 | New district | New district |
| Oshawa | | Ivan Grose 15,925 | | Andrew Davies 11,974 | | Brian Nicholson 7,350 | | Alan Hayes 6,972 | | | | Ivan Grose |
| Pickering—Ajax—Uxbridge | | Dan McTeague 26,003 | | Ken Griffith 10,537 | | Douglas W. Grey 2,576 | | Leanne Lewis 10,802 | | | | Dan McTeague Ontario |
| Thornhill | | Elinor Caplan 25,747 | | Aurel David 3,441 | | Helen Breslauer 2,008 | | Bill Fisch 11,517 | 926 | 926 | New district | New district |
| Vaughan—King—Aurora | | Maurizio Bevilacqua 33,502 | | Maralyn Hazelgrove 7,273 | | Robert Navarretta 2,250 | | Lara Coombs 8,591 | 524 | 524 | | Maurizio Bevilacqua York North |
| Whitby—Ajax | | Judi Longfield 23,551 | | Bill Serjeantson 11,977 | | Karen Dolan 3,354 | | Frank Snyder 10,107 | 394 | 394 | New district | New district |

### 1993
#### Party rankings

| Parties | 1st | 2nd | 3rd | 4th |
| Liberal | 4 | 0 | 0 | 0 |
| Reform | 0 | 3 | 1 | 0 |
| Progressive Conservative | 0 | 1 | 3 | 0 |
| New Democratic | 0 | 0 | 0 | 4 |
| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent |
| Electoral district | Liberal | Liberal | Reform | Reform | NDP | NDP | PC | PC | Other | Other | Incumbent | Incumbent |
| Markham—Whitchurch-Stouffville | | Jag Bhaduria 35,909 | | Joe Sherren 17,937 | | Jack Grant 1,692 | | Bill Attewell 19,695 | 1,985 | 1,985 | Bill Attewell |
| Ontario | | Dan McTeague 38,680 | | Don Sullivan 28,097 | | Lynn Jacklin 2,746 | | René Soetens 16,872 | 2,836 | 2,836 | René Soetens |
| Oshawa | | Ivan Grose 15,651 | | Andrew Davies 11,826 | | Michael Breaugh 6,102 | | Linda Dionne 6,140 | 1,174 | 1,174 | Michael Breaugh |
| York North | | Maurizio Bevilacqua 71,535 | | Heather Sinclair 20,146 | | Peter M.A. DeVita 3,006 | | Dario D'Angela 15,484 | 2,841 | 2,841 | Maurizio Bevilacqua |

### 1988
#### Party rankings

| Parties | 1st | 2nd | 3rd |
| Progressive Conservative | 2 | 2 | 0 |
| Liberal | 1 | 2 | 1 |
| New Democratic | 1 | 0 | 3 |
| Electoral district | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Candidates | Incumbent | Incumbent |
| Electoral district | PC | PC | Liberal | Liberal | NDP | NDP | Other | Other | | Incumbent | Incumbent |
| Markham | | Bill Attewell 36,673 | | Jag Bhaduria 21,973 | | Susan Krone 6,209 | 4,211 | 4,211 | New district | New district |
| Ontario | | René Soetens 34,969 | | John Roberts 23,091 | | Jim Wiseman 12,751 | 632 | 632 | | Thomas Fennell |
| Oshawa | | Nancy Mclean 14,040 | | Ed White 8,496 | | Ed Broadbent 18,410 | 588 | 588 | | Ed Broadbent |
| York North | | Michael O'Brien 37,436 | | Maurizio Bevilacqua 37,513 | | Evelyn Buck 11,583 | 1,293 | 1,293 | | Tony Roman |