{| class="wikitable" align="right"
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This page lists results of Canadian federal elections in Southwestern Ontario.
Regional profile
Beginning at the start of the 1960s, Southwestern Ontario has traditionally given more support to the Liberals, aside from 1984, although there has always been a pronounced urban-rural split: the New Democrats (NDP) and Liberals are both stronger in Windsor and London, while the rural areas and Sarnia have leaned more towards the Conservatives due to their social conservative bent. The Liberals swept all the ridings in the region in 1993, 1997 and 2000, save one NDP win in 2000.
However, in the 2004, 2006, 2008 and 2011 elections, the entire region, incrementally swung away from the Liberals to support the Conservatives, including in London, where three-way vote-splitting resulted in two ridings switching from Liberal to Conservative. The loss of the second one, London North Centre, in the 2011 election, left the Liberals without any seats in Southwestern Ontario for the first time since Confederation. The exception to Conservative swing was in one London riding, London-Fanshawe, and in Windsor's two ridings, which remained with the NDP from 2006 right through the 2015 election.
In 2015, Southwestern Ontario's election results did not at all mirror the overall federal election results. The Liberals managed to take back two seats in the entire Region, both in London, but the NDP added a seat adjacent to Windsor, Essex, and the Conservatives retained four seats, three rural and also Sarnia-Lambton. The 2019 election saw the NDP lose two of the three Windsor area seats it held before the election, with one of each going to the Conservatives and the Liberals. This election also saw increased regional polarization, with all seats in urban London and Windsor being won by the Liberals or the NDP, and all other seats being won by the Conservatives.
Votes by party throughout time
{| class="wikitable" style="text-align:right; line-height:16px"
|-
! rowspan="2" width="20"|Election
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|-
| |
| |
| |
| |
| |
| |
| |
| |
|-
! scope="row"|1979
| 174,830<br><small>40.0%</small>
|
| 101,849<br><small>23.3%</small>
|
|
| 159,609<br><small>36.5%</small>
|
| 933<br><small>0.2%</small>
|-
! scope="row"|1980
| 203,740<br><small>46.7%</small>
|
| 98,687<br><small>22.6%</small>
|
|
| 132,159<br><small>30.3%</small>
|
| 953<br><small>0.2%</small>
|-
! scope="row"|1984
| 136,208<br><small>29.9%</small>
|
| 104,223<br><small>22.9%</small>
|
|
| 214,843<br><small>47.1%</small>
|
| 141<br><small>0.0%</small>
|-
! scope="row"|1988
| 198,455<br><small>40.2%</small>
|
| 121,679<br><small>24.6%</small>
|
|
| 164,980<br><small>33.4%</small>
|
| 7,994<br><small>1.6%</small>
|-
! scope="row"|1993
| 266,349<br><small>54.6%</small>
|
| 42,763<br><small>8.8%</small>
| 1,918<br><small>0.4%</small>
|
| 81,334<br><small>16.7%</small>
| 83,538<br><small>17.1%</small>
| 12,129<br><small>2.5%</small>
|-
! scope="row"|1997
| 209,513<br><small>47.6%</small>
|
| 68,895<br><small>15.6%</small>
| 3,434<br><small>0.8%</small>
|
| 65,717<br><small>14.9%</small>
| 84,454<br><small>19.2%</small>
| 8,343<br><small>1.9%</small>
|-
! scope="row"|2000
| 201,859<br><small>48.3%</small>
|
| 50,285<br><small>12.0%</small>
| 3,686<br><small>0.9%</small>
|
| 47,883<br><small>11.5%</small>
| 110,620<br><small>26.5%</small>
| 3,190<br><small>0.8%</small>
|-
! scope="row"|2004
| 182,852<br><small>38.4%</small>
| 149,902<br><small>31.5%</small>
| 116,361<br><small>24.4%</small>
| 20,020<br><small>4.2%</small>
|
|
|
| 5,974<br><small>1.3%</small>
|-
! scope="row"|2006
| 170,565<br><small>32.1%</small>
| 189,968<br><small>35.8%</small>
| 143,392<br><small>27.0%</small>
| 21,076<br><small>4.0%</small>
|
|
|
| 4,217<br><small>0.8%</small>
|-
! scope="row"|2008
| 125,074<br><small>26.6%</small>
| 183,406<br><small>39.0%</small>
| 124,325<br><small>26.5%</small>
| 33,665<br><small>7.2%</small>
|
|
|
| 2,811<br><small>0.6%</small>
|-
! scope="row"|2011
| 85,083<br><small>17.4%</small>
| 222,451<br><small>45.4%</small>
| 164,202<br><small>33.5%</small>
| 14,774<br><small>3.0%</small>
|
|
|
| 2,656<br><small>0.5%</small>
|-
! scope="row"|2015
| 188,904<br><small>33.1%</small>
| 205,474<br><small>36.0%</small>
| 158,586<br><small>27.8%</small>
| 15,734<br><small>2.8%</small>
|
|
|
| 2,245<br><small>0.4%</small>
|-
! scope="row"|2019
| 181,782<br><small>30.3%</small>
| 216,455<br><small>36.1%</small>
| 156,845<br><small>26.1%</small>
| 28,903<br><small>4.8%</small>
| 12,731<br><small>2.1%</small>
|
|
| 2,481<br><small>0.4%</small>
|-
! scope="row"|2021
| 154,118<br><small>26.1%</small>
| 213,039<br><small>36.1%</small>
| 157,279<br><small>26.7%</small>
| 6,981<br><small>1.2%</small>
| 56,188<br><small>9.5%</small>
|
|
| 2,207<br><small>0.4%</small>
|-
! scope="row"|2025
| 276,656<br><small>41.4%</small>
| 315,658<br><small>47.2%</small>
| 61,648<br><small>9.2%</small>
| 3,663<br><small>0.5%</small>
| 7,542<br><small>1.1%</small>
|
|
| 3,000<br><small>0.4%</small>
|}
2021
|-
| style="background-color:whitesmoke" |Chatham-Kent—Leamington
|
|Greg Hetherington<br />15,683<br />28.59%
||
|Dave Epp<br />22,435<br />40.90%
|
|Dan Gelinas<br />8,007<br />14.60%
|
|Mark Vercouteren<br />837<br />1.53%
|
|Liz Vallee<br />7,892<br />14.39%
|
|
||
|Dave Epp
|-
| style="background-color:whitesmoke" |Elgin—Middlesex—London
|
|Afeez Ajibowu<br />12,326<br />19.55%
||
|Karen Vecchio<br />31,472<br />49.91%
|
|Katelyn Cody<br />10,086<br />15.99%
|
|Amanda Stark<br />1,417<br />2.25%
|
|Chelsea Hillier<br />7,429<br />11.78%
|
|Michael Hopkins (CHP)<br />328<br />0.52%
||
|Karen Vecchio
|-
|rowspan=2 style="background-color:whitesmoke" |Essex
|rowspan=2 |
|rowspan=2 |Audrey Festeryga<br />10,813<br />15.45%
|rowspan=2 |
|rowspan=2 |Chris Lewis<br />28,741<br />41.07%
|rowspan=2 |
|rowspan=2 |Tracey Ramsey<br />22,278<br />31.84%
|rowspan=2 |
|rowspan=2 |Nancy Pancheshan<br />865<br />1.24%
|rowspan=2 |
|rowspan=2 |Beth Charron-Rowberry<br />6,925<br />9.90%
|
|Andrew George (Ind.)<br />172 0.25%
|rowspan=2 |
|rowspan=2 |Chris Lewis
|-
|
|Jeremy Palko (CHP)<br />182 0.26%
|-
| style="background-color:whitesmoke" |Lambton—Kent—Middlesex
|
|Sudit Ranade<br />12,552<br />20.68%
||
|Lianne Rood<br />29,431<br />48.49%
|
|Jason Henry<br />11,107<br />18.30%
|
|Jeremy Hull<br />1,035<br />1.71%
|
|Kevin Mitchell<br />6,567<br />10.82%
|
|
||
|Lianne Rood
|-
| style="background-color:whitesmoke" |London—Fanshawe
|
|Mohamed Hammoud<br />11,882<br />23.11%
|
|Mattias Vanderley<br />12,486<br />24.28%
||
|Lindsay Mathyssen<br />22,336<br />43.44%
|
|
|
|Kyle Free<br />4,718<br />9.18%
|
|
||
|Lindsay Mathyssen
|-
| style="background-color:whitesmoke" |London North Centre
||
|Peter Fragiskatos<br />22,921<br />39.10%
|
|Stephen Gallant<br />15,889<br />27.11%
|
|Dirka Prout<br />15,611<br />26.63%
|
|Mary Ann Hodge<br />1,297<br />2.21%
|
|Marc Emery<br />2,902<br />4.95%
|
|
||
|Peter Fragiskatos
|-
| style="background-color:whitesmoke" |London West
||
|Arielle Kayabaga<br />25,308<br />36.88%
|
|Rob Flack<br />22,273<br />32.46%
|
|Shawna Lewkowitz<br />16,858<br />24.57%
|
|
|
|Mike McMullen<br />3,409<br />4.97%
|
|Jacques Y. Boudreau (Libert.)<br />773<br />1.13%
||
|Kate Young
|-
| style="background-color:whitesmoke" |Sarnia—Lambton
|
|Lois Nantais<br />10,975<br />19.29%
||
|Marilyn Gladu<br />26,292<br />46.21%
|
|Adam Kilner<br />11,990<br />21.07%
|
|Stefanie Bunko<br />848<br />1.49%
|
|Brian Everaert<br />6,359<br />11.18%
|
|Tom Laird (CHP)<br />435<br />0.76%
||
|Marilyn Gladu
|-
| style="background-color:whitesmoke" |Windsor—Tecumseh
||
|Irek Kusmierczyk<br />18,134<br />31.83%
|
|Kathy Borrelli<br />14,605<br />25.63%
|
|Cheryl Hardcastle<br />17,465<br />30.65%
|
|Henry Oulevey<br />682<br />1.20%
|
|Victor Green<br />5,927<br />10.40%
|
|Laura Chesnik (M-L)<br />164<br />0.29%
||
|Irek Kusmierczyk
|-
| style="background-color:whitesmoke" |Windsor West
|
|Sandra Pupatello<br />13,524<br />27.77%
|
|Anthony Orlando<br />9,415<br />19.34%
||
|Brian Masse<br />21,541<br />44.24%
|
|
|
|Matthew Giancola<br />4,060<br />8.34%
|
|Margaret Villamizar (M-L)<br />153<br />0.31%
||
|Brian Masse
|}
2019
|-
| style="background-color:whitesmoke" |Chatham-Kent—Leamington
|
|Katie Omstead<br>16,899<br>31.24%
||
|Dave Epp<br>25,359<br>46.88%
|
|Tony Walsh<br>8,229<br>15.21%
|
|Mark Vercouteren<br>2,233<br>4.13%
|
|John Balagtas<br>1,061<br>1.96%
|
|Paul Coulbeck (Mar.)<br>307<br>0.57%
||
|Dave Van Kesteren†
|-
| style="background-color:whitesmoke" |Elgin—Middlesex—London
|
|Pam Armstrong<br>14,324<br>23.20%
||
|Karen Vecchio<br>31,026<br>50.24%
|
|Bob Hargreaves<br>11,019<br>17.84%
|
|Ericha Hendel<br>3,562<br>5.77%
|
|Donald Helkaa<br>956<br>1.55%
|
|Peter Redecop (CHP)<br>618<br>1.00%<br />Richard Styve (Libert.)<br>249<br>0.40%
||
|Karen Vecchio
|-
| style="background-color:whitesmoke" |Essex
|
|Audrey Festeryga<br>12,987<br>19.02%
||
|Chris Lewis<br>28,274<br>41.40%
|
|Tracey Ramsey<br>23,603<br>34.56%
|
|Jennifer Alderson<br>2,173<br>3.18%
|
|Bill Capes<br>1,251<br>1.83%
|
|
||
|Tracey Ramsey
|-
| style="background-color:whitesmoke" |Lambton—Kent—Middlesex
|
|Jesse McCormick<br>14,814<br>25.36%
||
|Lianne Rood<br>28,651<br>49.05%
|
|Dylan Mclay<!-- Mclay is likely an error for McLay but we go with Elections Canada registration --><br>9,355<br>16.02%
|
|Anthony Li<br>3,463<br>5.93%
|
|Bria Atkins<br>1,804<br>3.09%
|
|Rob Lalande (VCP)<br>325<br>0.56%
||
|Bev Shipley†
|-
| style="background-color:whitesmoke" |London—Fanshawe
|
|Mohamed Hammoud<br>14,924<br>26.85%
|
|Michael van Holst<br>13,770<br>24.78%
||
|Lindsay Mathyssen<br>22,671<br>40.79%
|
|Tom Cull<br>2,781<br>5.00%
|
|Bela Kosoian<br>1,132<br>2.04%
|
|Stephen Campbell (Ind.)<br>297<br>0.53%
||
|Irene Mathyssen†
|-
| style="background-color:whitesmoke" |London North Centre
||
|Peter Fragiskatos<br>27,247<br>42.75%
|
|Sarah Bokhari<br>15,066<br>23.64%
|
|Dirka Prout<br>14,887<br>23.36%
|
|Carol Dyck<br>4,872<br>7.64%
|
|Salim Mansur<br>1,532<br>2.40%
|
|Clara Sorrenti (Comm.)<br>137<br>0.21%
||
|Peter Fragiskatos
|-
| style="background-color:whitesmoke" |London West
||
|Kate Young<br>30,622<br>42.96%
|
|Liz Snelgrove<br>19,910<br>27.93%
|
|Shawna Lewkowitz<br>15,220<br>21.35%
|
|Mary Ann Hodge<br>3,827<br>5.37%
|
|Mike Mcmullen<!-- Mcmullen is likely an error for McMullin but we go with Elections Canada registration --><br>1,171<br>1.64%
|
|Jacques Boudreau (Libert.)<br>523<br>0.73%
||
|Kate Young
|-
| style="background-color:whitesmoke" |Sarnia—Lambton
|
|Carmen Lemieux<br>12,041<br>20.79%
||
|Marilyn Gladu<br>28,623<br>49.42%
|
|Adam Kilner<br>12,644<br>21.83%
|
|Peter Robert Smith<br>2,490<br>4.30%
|
|Brian Everaert<br>1,587<br>2.74%
|
|Thomas Laird (CHP)<br>531<br>0.92%
||
|Marilyn Gladu
|-
| style="background-color:whitesmoke" |Windsor—Tecumseh
||
|Irek Kusmierczyk<br>19,046<br>33.44%
|
|Leo Demarce<br>15,851<br>27.83%
|
|Cheryl Hardcastle<br>18,417<br>32.33%
|
|Giovanni Abati<br>2,177<br>3.82%
|
|Dan Burr<br>1,279<br>2.25%
|
|Laura Chesnik (M-L)<br>187<br>0.33%
||
|Cheryl Hardcastle
|-
| style="background-color:whitesmoke" |Windsor West
|
|Sandra Pupatello<br>18,878<br>36.33%
|
|Henry Lau<br>9,925<br>19.10%
||
|Brian Masse<br>20,800<br>40.03%
|
|Quinn Hunt<br>1,325<br>2.55%
|
|Darryl Burrell<br>958<br>1.84%
|
|Margaret Villamizar (M-L)<br>76<br>0.15%
||
|Brian Masse
|}<noinclude>
2015
2011
2008
2006
2004
Maps
- Chatham-Kent-Essex
- Elgin-Middlesex-London
- Essex
- London-Fanshawe
- London North Centre
- London West
- Lambton-Kent-Middlesex
- Sarnia-Lambton
- Windsor-Tecumseh
- Windsor West
<gallery widths=185 heights=185>
Image:so04.PNG|Key map
Image:socpc.PNG|Conservative Party of Canada
Image:sogpc.PNG|Green Party of Canada
Image:solpc.PNG|Liberal Party of Canada
Image:sondp.PNG|New Democratic Party
</gallery>