Detailed results of the 2007 Ontario electoral reform referendum

The following tables are the detailed results of the Ontario electoral reform referendum that was held on October 10, 2007, in an attempt to establish a mixed-member proportional representation (MMP) system for elections to the Legislative Assembly of Ontario. However, the vote went heavily in favor of the existing plurality voting or "first-past-the-post" (FPTP) system.

Results for Ontario regions excluding Toronto

Riding	Region	First-past-the-post	Mixed-member proportional
Ajax-Pickering	Southern Durham and York	25,023 (63.0%)	14,685 (37.0%)
Algoma-Manitoulin	Northern Ontario	18,099 (69.9%)	7,806 (30.1%)
Ancaster-Dundas-Flamborough-Westdale	Hamilton, Burlington and Niagara	30,756 (63.0%)	18,047 (37.0%)
Barrie	Central Ontario	27,951 (61.8%)	17,310 (38.2%)
Bramalea-Gore-Malton	Brampton, Mississauga and Oakville	23,241 (59.5%)	15,793 (40.5%)
Brampton-Springdale	Brampton, Mississauga and Oakville	20,528 (60.8%)	13,210 (39.2%)
Brampton West	Brampton, Mississauga and Oakville	26,221 (60.7%)	16,962 (39.3%)
Brant	Midwestern Ontario	30,256 (65.1%)	16,200 (34.9%)
Bruce-Grey-Owen Sound	Central Ontario	27,637 (62.9%)	16,279 (37.1%)
Burlington	Hamilton, Burlington and Niagara	33,788 (65.8%)	17,524 (34.2%)
Cambridge	Midwestern Ontario	25,805 (61.5%)	16,187 (38.5%)
Carleton-Mississippi Mills	Ottawa	36,458 (70.2%)	15,454 (29.8%)
Chatham-Kent-Essex	Southwestern Ontario	24,219 (69.2%)	10,802 (30.8%)
Dufferin-Caledon	Central Ontario	24,847 (64.1%)	13,910 (35.9%)
Durham	Central Ontario	30,292 (67.3%)	14,751 (32.7%)
Elgin-Middlesex-London	Southwestern Ontario	27,035 (67.9%)	12,771 (32.1%)
Essex	Southwestern Ontario	27,228 (66.9%)	13,452 (33.1%)
Glengarry-Prescott-Russell	Eastern Ontario	28,263 (73.6%)	10,121 (26.4%)
Guelph	Midwestern Ontario	27,081 (55.7%)	21,503 (44.3%)
Haldimand-Norfolk	Midwestern Ontario	28,684 (68.8%)	13,034 (31.2%)
Haliburton-Kawartha Lakes-Brock	Central Ontario	33,292 (70.1%)	14,234 (29.9%)
Halton	Hamilton, Burlington and Niagara	33,833 (63.3%)	19,601 (36.7%)
Hamilton Centre	Hamilton, Burlington and Niagara	20,942 (56.5%)	16,108 (43.5%)
Hamilton East—Stoney Creek	Hamilton, Burlington and Niagara	26,386 (63.8%)	14,998 (36.2%)
Hamilton Mountain	Hamilton, Burlington and Niagara	29,375 (65.0%)	15,818 (35.0%)
Huron—Bruce	Midwestern Ontario	30,795 (71.4%)	12,342 (28.6%)
Kenora-Rainy River	Northern Ontario	15,669 (69.9%)	6,734 (30.1%)
Kingston and the Islands	Eastern Ontario	26,427 (54.7%)	21,922 (45.3%)
Kitchener Centre	Midwestern Ontario	22,269 (59.9%)	14,908 (40.1%)
Kitchener—Conestoga	Midwestern Ontario	24,264 (63.6%)	13,859 (36.4%)
Kitchener—Waterloo	Midwestern Ontario	28,580 (57.0%)	21,543 (43.0%)
Lambton-Kent-Middlesex	Southwestern Ontario	28,085 (68.8%)	12,739 (31.2%)
Lanark—Frontenac—Lennox and Addington	Eastern Ontario	29,366 (66.7%)	14,657 (33.3%)
Leeds—Grenville	Eastern Ontario	28,156 (71.2%)	11,392 (28.8%)
London—Fanshawe	Southwestern Ontario	21,709 (63.3%)	12,563 (36.7%)
London North Centre	Southwestern Ontario	26,619 (59.5%)	18,103 (40.5%)
London West	Southwestern Ontario	30,789 (64.0%)	17,338 (36.0%)
Markham—Unionville	Southern Durham and York	20,146 (58.8%)	14,143 (41.2%)
Mississauga—Brampton South	Brampton, Mississauga and Oakville	21,219 (60.0%)	14,124 (40.0%)
Mississauga East—Cooksville	Brampton, Mississauga and Oakville	22,180 (61.6%)	13,822 (38.4%)
Mississauga—Erindale	Brampton, Mississauga and Oakville	27,165 (62.3%)	16,473 (37.7%)
Mississauga South	Brampton, Mississauga and Oakville	26,127 (65.1%)	14,036 (34.9%)
Mississauga—Streetsville	Brampton, Mississauga and Oakville	23,183 (61.7%)	14,417 (38.3%)
Nepean-Carleton	Ottawa	36,775 (69.2%)	16,393 (30.8%)
Newmarket—Aurora	Central Ontario	29,517 (66.0%)	15,232 (34.0%)
Niagara Falls	Hamilton, Burlington and Niagara	29,240 (64.7%)	15,966 (35.3%)
Niagara West-Glanbrook	Hamilton, Burlington and Niagara	30,670 (65.7%)	16,012 (34.3%)
Nickel Belt	Northern Ontario	21,731 (69.0%)	9,771 (31.0%)
Nipissing	Northern Ontario	23,116 (73.4%)	8,383 (26.6%)
Northumberland—Quinte West	Central Ontario	32,332 (67.2%)	15,770 (32.8%)
Oak Ridges—Markham	Southern Durham and York	35,866 (62.0%)	22,006 (38.0%)
Oakville	Brampton, Mississauga and Oakville	31,282 (67.0%)	15,410 (33.0%)
Oshawa	Southern Durham and York	25,656 (64.2%)	14,306 (35.8%)
Ottawa Centre	Ottawa	26,603 (51.9%)	24,642 (48.1%)
Ottawa-Orleans	Ottawa	33,537 (70.1%)	14,296 (29.9%)
Ottawa South	Ottawa	30,718 (65.8%)	15,941 (34.2%)
Ottawa-Vanier	Ottawa	24,545 (61.3%)	15,501 (38.7%)
Ottawa-West Nepean	Ottawa	30,459 (66.6%)	15,244 (33.4%)
Oxford	Midwestern Ontario	25,093 (66.0%)	12,909 (34.0%)
Parry Sound-Muskoka	Northern Ontario	24,421 (67.9%)	11,527 (32.1%)
Perth Wellington	Midwestern Ontario	25,479 (67.6%)	12,237 (32.4%)
Peterborough	Central Ontario	32,364 (64.4%)	17,863 (35.6%)
Pickering—Scarborough East	Southern Durham and York	25,361 (63.7%)	14,469 (36.3%)
Prince Edward—Hastings	Eastern Ontario	29,067 (66.1%)	14,885 (33.9%)
Renfrew—Nipissing—Pembroke	Eastern Ontario	28,748 (74.3%)	9,926 (25.7%)
Richmond Hill	Southern Durham and York	23,240 (58.9%)	16,240 (41.1%)
St. Catharines	Hamilton, Burlington and Niagara	26,611 (61.7%)	16,516 (38.3%)
Sarnia-Lambton (270/272)	Southwestern Ontario	27,498 (66.6%)	13,786 (33.4%)
Sault Ste. Marie	Northern Ontario	22,830 (73.8%)	8,110 (26.2%)
Simcoe—Grey	Central Ontario	31,413 (66.8%)	15,580 (33.2%)
Simcoe North	Central Ontario	28,222 (62.7%)	16,791 (37.3%)
Stormont-Dundas-South Glengarry	Eastern Ontario	27,203 (73.5%)	9,786 (26.5%)
Sudbury	Northern Ontario	21,613 (68.1%)	10,127 (31.9%)
Thornhill	Southern Durham and York	29,021 (62.1%)	17,683 (37.9%)
Thunder Bay-Atikokan	Northern Ontario	19,211 (68.4%)	8,864 (31.6%)
Thunder Bay-Superior North	Northern Ontario	18,640 (67.7%)	8,897 (32.3%)
Timiskaming-Cochrane	Northern Ontario	19,759 (76.4%)	6,102 (23.6%)
Timmins-James Bay	Northern Ontario	18,784 (77.5%)	5,439 (22.5%)
Vaughan	Southern Durham and York	27,336 (61.7%)	16,979 (38.3%)
Welland	Hamilton, Burlington and Niagara	26,893 (60.1%)	17,830 (39.9%)
Wellington-Halton Hills	Midwestern Ontario	28,472 (66.2%)	14,543 (33.8%)
Whitby—Oshawa	Southern Durham and York	33,509 (66.2%)	17,121 (33.8%)
Willowdale	Toronto North Region	25,555 (59.6%)	17,304 (40.4%)
Windsor—Tecumseh	Southwestern Ontario	22,786 (64.4%)	12,586 (35.6%)
Windsor West	Southwestern Ontario	20,433 (63.1%)	11,963 (36.9%)
York—Simcoe	Central Ontario	26,223 (64.6%)	14,374 (35.4%)
Totals		2,297,820 (64.8%)	1,246,985 (35.2%)

Results for Toronto regions

Riding	Region	First-past-the-post	Mixed-member proportional
Beaches-East York	Toronto South Region	19,212 (50.0%)	19,242 (50.0%)
Davenport	Toronto South Region	12,241 (43.5%)	15,923 (56.5%)
Don Valley East	Toronto North Region	20,758 (61.0%)	13,265 (39.0%)
Don Valley West	Toronto North Region	28,084 (63.0%)	16,484 (37.0%)
Eglinton-Lawrence	Toronto North Region	23,475 (61.0%)	14,996 (39.0%)
Etobicoke Centre	Toronto West Region	28,866 (65.3%)	15,331 (34.7%)
Etobicoke-Lakeshore	Toronto West Region	26,115 (61.2%)	16,576 (38.8%)
Etobicoke North	Toronto West Region	15,176 (57.7%)	11,131 (42.3%)
Parkdale—High Park	Toronto West Region	18,067 (45.7%)	21,444 (54.3%)
Scarborough—Agincourt	Toronto East Region	19,258 (60.1%)	12,808 (39.9%)
Scarborough Centre	Toronto East Region	19,284 (60.8%)	12,457 (39.2%)
Scarborough-Guildwood	Toronto East Region	19,544 (60.0%)	13,050 (40.0%)
Scarborough—Rouge River	Toronto East Region	18,230 (55.0%)	14,892 (45.0%)
Scarborough Southwest	Toronto East Region	18,699 (59.2%)	12,894 (40.8%)
St. Paul's	Toronto South Region	24,120 (55.2%)	19,595 (44.8%)
Toronto Centre	Toronto South Region	22,039 (50.2%)	21,903 (49.8%)
Toronto—Danforth	Toronto South Region	16,767 (44.4%)	20,991 (55.6%)
Trinity—Spadina	Toronto South Region	17,747 (40.7%)	25,815 (59.3%)
York Centre	Toronto North Region	19,420 (60.3%)	12,774 (39.7%)
York South—Weston	Toronto West Region	17,006 (56.7%)	12,991 (43.3%)
York West	Toronto West Region	12,092 (54.3%)	10,194 (45.7%)
Totals		416,200 (55.4%)	334,756 (44.6%)

Province-wide results summary

Region set	First-past-the-post	Mixed-member proportional
Excluding Toronto	2,297,820 (64.8%)	1,246,985 (35.2%)
Toronto Regions	416,200 (55.4%)	334,756 (44.6%)
All Regions	2,714,020 (63.2%)	1,581,741 (36.8%)