# 1971 Ontario general election

The 1971 Ontario general election was held on October 21, 1971, to elect the 117 members of the 29th Legislative Assembly of Ontario (Members of Provincial Parliament, or "MPPs") of the Province of Ontario.
The Ontario Progressive Conservative Party, led by Bill Davis, who had replaced John Robarts as PC leader and premier earlier in the year, won a ninth consecutive term in office, and maintained its majority in the legislature, increasing its caucus in the legislature by eight seats from its result in the previous election.
The Ontario Liberal Party, led by Robert Nixon, lost seven seats, but continued in the role of official opposition.
The social democratic Ontario New Democratic Party, led by Stephen Lewis, lost one seat.
This election marked the first time that the provincial election was held on a Thursday. Subsequently, every provincial election has also been held on a Thursday, with the exception of the 2007 Ontario general election, which was held on a Wednesday.
The electoral franchise was significantly expanded upon the reduction of the voting age from 21 to 18.

## Results
### Summary

Elections to the 29th Parliament of Ontario (1967) :
| Political party | Political party | Party leader | MPPs | MPPs | MPPs | MPPs | Votes | Votes | Votes | Votes |
| Political party | Political party | Party leader | Candidates | 1967 | 1971 | ± | # | ± | % | ± (pp) |
| | Progressive Conservative | Bill Davis | 117 | 69 | 78 | 9 | 1,465,313 | 446,558 | 44.50% | 2.40 |
| | Liberal | Robert Nixon | 117 | 28 | 20 | 8 | 913,742 | 146,351 | 27.75% | 3.97 |
| | New Democratic | Stephen Lewis | 117 | 20 | 19 | 1 | 893,879 | 265,482 | 27.15% | 1.18 |
| | Independent | | 23 | – | – | – | 16,959 | 14,577 | 0.52% | 0.42 |
| | Communist | William Stewart | 5 | – | – | – | 1,620 | 558 | 0.05% | 0.03 |
| | Social Credit | | 5 | – | – | – | 1,204 | 702 | 0.04% | 0.04 |
| Total | Total | Total | 384 | 117 | 117 | 117 | 3,292,717 | 3,292,717 | 100.00% | 100.00% |
| Rejected ballots | Rejected ballots | Rejected ballots | Rejected ballots | Rejected ballots | Rejected ballots | Rejected ballots | 18,059 | 1,469 | | |
| Voter turnout | Voter turnout | Voter turnout | Voter turnout | Voter turnout | Voter turnout | Voter turnout | 3,310,776 | 871,538 | 73.52 | 7.34 |
| Registered electors | Registered electors | Registered electors | Registered electors | Registered electors | Registered electors | Registered electors | 4,503,142 | 817,387 | | |
* ↑ includes Liberal-Labour in 1967 totals
Seats and popular vote by party :
| Party | Seats | Votes | Change (pp) | Change (pp) |
| █ Progressive Conservative | 78 / 117 | 44.50% | 2.40 | 2.4 |
| █ Liberal | 20 / 117 | 27.75% | -3.97 | |
| █ New Democratic | 19 / 117 | 27.15% | 1.18 | 1.18 |
| █ Independent | 0 / 122 | 0.52% | 0.42 | 0.42 |
| █ Other | 0 / 122 | 0.08% | -0.03 | |

### Synopsis of results

Results by riding - 1971 Ontario general election :
| Riding | Winning party | Winning party | Winning party | Winning party | Winning party | Winning party | Winning party | Winning party | Turnout | Votes | Votes | Votes | Votes | Votes | Votes | Votes |
| Name | 1967 | 1967 | Party | Party | Votes | Share | Margin # | Margin % | Turnout | PC | Lib | NDP | Ind | Comm | SC | Total |
| Algoma | | PC | | PC | 5,222 | 42.20% | 1,397 | 11.29% | 73.88% | 5,222 | 3,326 | 3,825 | – | – | – | 12,373 |
| Algoma—Manitoulin | | Lib | | PC | 5,147 | 40.32% | 1,298 | 10.17% | 72.06% | 5,147 | 3,768 | 3,849 | – | – | – | 12,764 |
| Brant | | Lib | | Lib | 8,846 | 50.98% | 3,699 | 21.32% | 73.31% | 5,147 | 8,846 | 3,359 | – | – | – | 17,352 |
| Brantford | | NDP | | PC | 16,632 | 45.04% | 4,524 | 12.25% | 80.80% | 16,632 | 8,188 | 12,108 | – | – | – | 36,928 |
| Carleton | | PC | | PC | 18,538 | 49.95% | 7,622 | 20.54% | 73.78% | 18,538 | 10,916 | 7,656 | – | – | – | 37,110 |
| Carleton East | | PC | | PC | 13,190 | 46.56% | 4,123 | 14.56% | 65.97% | 13,190 | 9,067 | 6,069 | – | – | – | 28,326 |
| Chatham—Kent | | PC | | PC | 10,827 | 48.54% | 2,208 | 9.90% | 65.09% | 10,827 | 8,619 | 2,859 | – | – | – | 22,305 |
| Cochrane North | | PC | | PC | 11,212 | 64.02% | 5,454 | 31.14% | 76.21% | 11,212 | 543 | 5,758 | – | – | – | 17,513 |
| Cochrane South | | NDP | | NDP | 11,383 | 48.43% | 655 | 2.79% | 74.68% | 10,728 | 1,270 | 11,383 | 122 | – | – | 23,503 |
| Dufferin—Simcoe | | PC | | PC | 12,063 | 51.97% | 4,454 | 19.19% | 68.28% | 12,063 | 7,609 | 3,540 | – | – | – | 23,212 |
| Durham | | PC | | PC | 10,628 | 48.22% | 3,454 | 15.67% | 76.47% | 10,628 | 4,239 | 7,174 | – | – | – | 22,041 |
| Elgin | | PC | | PC | 14,742 | 45.08% | 4,325 | 13.23% | 78.98% | 14,742 | 10,417 | 7,329 | 215 | – | – | 32,703 |
| Essex—Kent | | Lib | | Lib | 7,087 | 40.30% | 1,035 | 5.89% | 75.52% | 4,446 | 7,087 | 6,052 | – | – | – | 17,585 |
| Essex South | | Lib | | Lib | 12,217 | 51.75% | 5,696 | 24.13% | 74.77% | 4,872 | 12,217 | 6,521 | – | – | – | 23,610 |
| Fort William | | PC | | PC | 13,428 | 49.05% | 3,777 | 13.80% | 75.91% | 13,428 | 4,296 | 9,651 | – | – | – | 27,375 |
| Frontenac—Addington | | PC | | PC | 7,539 | 38.05% | 1,706 | 8.61% | 71.67% | 7,539 | 5,833 | 2,081 | 4,363 | – | – | 19,816 |
| Glengarry | | PC | | PC | 7,496 | 55.72% | 3,211 | 23.87% | 75.27% | 7,496 | 4,285 | 1,672 | – | – | – | 13,453 |
| Grenville—Dundas | | PC | | PC | 11,635 | 63.06% | 6,988 | 37.87% | 70.55% | 11,635 | 4,647 | 1,927 | 242 | – | – | 18,451 |
| Grey—Bruce | | Lib | | Lib | 13,657 | 46.17% | 2,638 | 8.92% | 79.70% | 11,019 | 13,657 | 4,905 | – | – | – | 29,581 |
| Grey South | | PC | | PC | 10,285 | 54.91% | 4,870 | 26.00% | 77.15% | 10,285 | 5,415 | 3,029 | – | – | – | 18,729 |
| Haldimand—Norfolk | | PC | | PC | 16,197 | 57.67% | 8,981 | 31.98% | 74.48% | 16,197 | 7,216 | 4,673 | – | – | – | 28,086 |
| Halton East | | PC | | PC | 21,359 | 55.43% | 11,622 | 30.16% | 75.07% | 21,359 | 9,737 | 7,154 | 284 | – | – | 38,534 |
| Halton West | | PC | | PC | 25,136 | 59.53% | 16,353 | 38.73% | 76.20% | 25,136 | 8,783 | 8,306 | – | – | – | 42,225 |
| Hamilton Centre | | NDP | | NDP | 8,018 | 38.32% | 1,422 | 6.80% | 61.61% | 6,596 | 6,310 | 8,018 | – | – | – | 20,924 |
| Hamilton East | | NDP | | NDP | 11,073 | 40.64% | 2,846 | 10.45% | 71.11% | 8,227 | 7,947 | 11,073 | – | – | – | 27,247 |
| Hamilton Mountain | | PC | | PC | 17,979 | 50.28% | 7,254 | 20.29% | 78.13% | 17,979 | 7,053 | 10,725 | – | – | – | 35,757 |
| Hamilton West | | PC | | PC | 12,807 | 43.51% | 4,565 | 15.51% | 73.86% | 12,807 | 8,150 | 8,242 | – | 233 | – | 29,432 |
| Hastings | | PC | | PC | 9,195 | 59.79% | 4,636 | 30.14% | 70.12% | 9,195 | 4,559 | 1,626 | – | – | – | 15,380 |
| Huron | | PC | | PC | 9,793 | 57.81% | 6,155 | 36.34% | 78.11% | 9,793 | 3,638 | 3,414 | 94 | – | – | 16,939 |
| Huron—Bruce | | Lib | | Lib | 12,374 | 67.60% | 8,616 | 47.07% | 79.13% | 3,758 | 12,374 | 2,172 | – | – | – | 18,304 |
| Kenora | | PC | | PC | 11,226 | 61.44% | 6,331 | 34.65% | 73.05% | 11,226 | 2,150 | 4,895 | – | – | – | 18,271 |
| Kent | | Lib | | Lib | 8,768 | 49.83% | 1,992 | 11.32% | 80.37% | 6,776 | 8,768 | 2,051 | – | – | – | 17,595 |
| Kingston and the Islands | | PC | | PC | 12,285 | 43.92% | 187 | 0.67% | 68.30% | 12,285 | 12,098 | 3,587 | – | – | – | 27,970 |
| Kitchener | | Lib | | Lib | 19,168 | 42.30% | 5,633 | 12.43% | 72.62% | 13,535 | 19,168 | 12,237 | 379 | – | – | 45,319 |
| Lambton | | PC | | PC | 9,983 | 50.70% | 3,697 | 18.78% | 75.69% | 9,983 | 6,286 | 2,915 | 507 | – | – | 19,691 |
| Lanark | | PC | | PC | 10,670 | 58.97% | 5,695 | 31.47% | 69.20% | 10,670 | 4,975 | 2,450 | – | – | – | 18,095 |
| Leeds | | PC | | PC | 15,477 | 65.45% | 10,754 | 45.48% | 75.26% | 15,477 | 3,447 | 4,723 | – | – | – | 23,647 |
| Lincoln | | PC | | PC | 19,513 | 62.54% | 13,289 | 42.59% | 72.38% | 19,513 | 6,224 | 4,556 | 572 | 336 | – | 31,201 |
| London North | | PC | | PC | 17,266 | 41.90% | 5,426 | 13.17% | 73.09% | 17,266 | 11,198 | 11,840 | 902 | – | – | 41,206 |
| London South | | PC | | PC | 24,064 | 50.54% | 11,363 | 23.87% | 77.88% | 24,064 | 12,701 | 10,845 | – | – | – | 47,610 |
| Middlesex North | | PC | | PC | 8,633 | 52.49% | 4,155 | 25.26% | 78.65% | 8,633 | 3,337 | 4,478 | – | – | – | 16,448 |
| Middlesex South | | PC | | PC | 12,253 | 42.85% | 3,053 | 10.68% | 77.14% | 12,253 | 7,140 | 9,200 | – | – | – | 28,593 |
| Muskoka | | PC | | PC | 7,240 | 50.01% | 3,119 | 21.54% | 73.68% | 7,240 | 3,116 | 4,121 | – | – | – | 14,477 |
| Niagara Falls | | Lib | | PC | 12,221 | 42.25% | 1,833 | 6.34% | 73.46% | 12,221 | 10,388 | 6,319 | – | – | – | 28,928 |
| Nickel Belt | | PC | | NDP | 9,003 | 49.37% | 1,964 | 10.77% | 79.34% | 7,039 | 2,195 | 9,003 | – | – | – | 18,237 |
| Nipissing | | Lib | | Lib | 12,166 | 41.95% | 28 | 0.10% | 74.61% | 12,138 | 12,166 | 4,698 | – | – | – | 29,002 |
| Northumberland | | PC | | PC | 12,277 | 54.43% | 5,560 | 24.65% | 75.74% | 12,277 | 6,717 | 3,563 | – | – | – | 22,557 |
| Ontario | | PC | | PC | 10,970 | 52.26% | 5,306 | 25.28% | 76.40% | 10,970 | 5,664 | 4,356 | – | – | – | 20,990 |
| Ontario South | | PC | | PC | 16,561 | 51.14% | 5,614 | 17.34% | 78.42% | 16,561 | 4,876 | 10,947 | – | – | – | 32,384 |
| Oshawa | | NDP | | PC | 19,207 | 46.73% | 2,726 | 6.63% | 74.99% | 19,207 | 5,413 | 16,481 | – | – | – | 41,101 |
| Ottawa Centre | | Lib | | NDP | 8,075 | 35.46% | 182 | 0.80% | 62.36% | 7,893 | 6,804 | 8,075 | – | – | – | 22,772 |
| Ottawa East | | PC | | Lib | 10,827 | 52.52% | 5,127 | 24.87% | 57.10% | 5,700 | 10,827 | 3,590 | 499 | – | – | 20,616 |
| Ottawa South | | PC | | PC | 22,392 | 51.67% | 11,754 | 27.12% | 72.89% | 22,392 | 10,307 | 10,638 | – | – | – | 43,337 |
| Ottawa West | | PC | | PC | 18,349 | 45.54% | 6,712 | 16.66% | 74.85% | 18,349 | 10,308 | 11,637 | – | – | – | 40,294 |
| Oxford | | Lib | | PC | 16,322 | 46.01% | 3,024 | 8.52% | 77.52% | 16,322 | 13,298 | 5,856 | – | – | – | 35,476 |
| Parry Sound | | PC | | PC | 6,682 | 37.35% | 2,184 | 12.21% | 74.58% | 6,682 | 3,763 | 2,947 | 4,498 | – | – | 17,890 |
| Peel North | | PC | | PC | 29,851 | 59.48% | 18,592 | 37.04% | 73.38% | 29,851 | 9,080 | 11,259 | – | – | – | 50,190 |
| Peel South | | PC | | PC | 29,569 | 54.63% | 17,282 | 31.93% | 73.61% | 29,569 | 12,287 | 12,266 | – | – | – | 54,122 |
| Perth | | Lib | | Lib | 16,265 | 54.31% | 6,815 | 22.76% | 74.35% | 9,450 | 16,265 | 4,231 | – | – | – | 29,946 |
| Peterborough | | NDP | | PC | 18,632 | 42.69% | 590 | 1.35% | 77.67% | 18,632 | 6,970 | 18,042 | – | – | – | 43,644 |
| Port Arthur | | Lib | | NDP | 11,461 | 45.06% | 1,369 | 5.38% | 75.47% | 10,092 | 3,880 | 11,461 | – | – | – | 25,433 |
| Prescott and Russell | | PC | | PC | 10,950 | 51.84% | 5,499 | 26.03% | 75.01% | 10,950 | 5,451 | 4,723 | – | – | – | 21,124 |
| Prince Edward—Lennox | | PC | | PC | 9,995 | 52.78% | 3,404 | 17.98% | 74.09% | 9,995 | 6,591 | 2,350 | – | – | – | 18,936 |
| Quinte | | PC | | PC | 15,066 | 57.36% | 7,455 | 28.38% | 67.52% | 15,066 | 7,611 | 3,588 | – | – | – | 26,265 |
| Rainy River | | LL | | Lib | 6,115 | 50.00% | 2,206 | 18.04% | 72.30% | 2,207 | 6,115 | 3,909 | – | – | – | 12,231 |
| Renfrew North | | PC | | PC | 11,980 | 51.76% | 3,517 | 15.20% | 71.42% | 11,980 | 8,463 | 2,516 | 185 | – | – | 23,144 |
| Renfrew South | | PC | | PC | 9,370 | 53.87% | 3,353 | 19.28% | 79.83% | 9,370 | 6,017 | 2,008 | – | – | – | 17,395 |
| St. Catharines | | PC | | PC | 16,074 | 43.92% | 5,627 | 15.37% | 68.01% | 16,074 | 10,080 | 10,447 | – | – | – | 36,601 |
| Sandwich—Riverside | | NDP | | NDP | 17,944 | 50.24% | 8,592 | 24.05% | 74.86% | 9,352 | 8,424 | 17,944 | – | – | – | 35,720 |
| Sarnia | | Lib | | Lib | 14,422 | 52.44% | 6,884 | 25.03% | 67.23% | 7,538 | 14,422 | 5,544 | – | – | – | 27,504 |
| Sault Ste. Marie | | PC | | PC | 14,983 | 43.00% | 1,035 | 2.97% | 79.24% | 14,983 | 5,915 | 13,948 | – | – | – | 34,846 |
| Simcoe Centre | | PC | | PC | 17,067 | 55.98% | 9,192 | 30.15% | 72.30% | 17,067 | 7,875 | 5,543 | – | – | – | 30,485 |
| Simcoe East | | PC | | PC | 12,109 | 48.41% | 5,468 | 21.86% | 73.33% | 12,109 | 6,264 | 6,641 | – | – | – | 25,014 |
| Stormont | | PC | | PC | 13,378 | 58.09% | 7,099 | 30.83% | 68.46% | 13,378 | 3,372 | 6,279 | – | – | – | 23,029 |
| Sudbury | | Lib | | NDP | 11,905 | 40.92% | 2,770 | 9.52% | 70.16% | 8,053 | 9,135 | 11,905 | – | – | – | 29,093 |
| Sudbury East | | NDP | | NDP | 15,522 | 53.62% | 8,457 | 29.21% | 71.69% | 6,363 | 7,065 | 15,522 | – | – | – | 28,950 |
| Thunder Bay | | NDP | | NDP | 6,996 | 55.03% | 3,882 | 30.54% | 75.38% | 3,114 | 2,602 | 6,996 | – | – | – | 12,712 |
| Temiskaming | | NDP | | PC | 9,695 | 47.22% | 2,154 | 10.49% | 74.88% | 9,695 | 3,297 | 7,541 | – | – | – | 20,533 |
| Victoria—Haliburton | | PC | | PC | 10,368 | 48.88% | 2,119 | 9.99% | 74.78% | 10,368 | 8,249 | 2,595 | – | – | – | 21,212 |
| Waterloo North | | Lib | | Lib | 15,035 | 39.41% | 2,438 | 6.39% | 72.90% | 12,597 | 15,035 | 10,162 | 359 | – | – | 38,153 |
| Waterloo South | | PC | | PC | 15,165 | 50.40% | 4,543 | 15.10% | 76.08% | 15,165 | 4,302 | 10,622 | – | – | – | 30,089 |
| Welland | | PC | | PC | 15,044 | 50.19% | 5,157 | 17.20% | 79.87% | 15,044 | 5,046 | 9,887 | – | – | – | 29,977 |
| Welland South | | Lib | | Lib | 8,845 | 36.35% | 438 | 1.80% | 74.09% | 8,407 | 8,845 | 7,082 | – | – | – | 24,334 |
| Wellington—Dufferin | | PC | | PC | 8,250 | 51.11% | 3,383 | 20.96% | 71.41% | 8,250 | 4,867 | 2,559 | 467 | – | – | 16,143 |
| Wellington South | | Lib | | Lib | 16,606 | 45.94% | 6,856 | 18.97% | 74.54% | 9,750 | 16,606 | 9,161 | 630 | – | – | 36,147 |
| Wentworth | | NDP | | NDP | 14,128 | 43.82% | 3,937 | 12.21% | 70.84% | 10,191 | 7,920 | 14,128 | – | – | – | 32,239 |
| Wentworth North | | PC | | PC | 12,489 | 45.35% | 4,279 | 15.54% | 80.74% | 12,489 | 8,210 | 6,842 | – | – | – | 27,541 |
| Windsor—Walkerville | | Lib | | Lib | 12,986 | 44.83% | 976 | 3.37% | 74.84% | 3,974 | 12,986 | 12,010 | – | – | – | 28,970 |
| Windsor West | | NDP | | NDP | 13,119 | 42.98% | 3,444 | 11.28% | 72.33% | 9,675 | 7,731 | 13,119 | – | – | – | 30,525 |
| York Centre | | Lib | | Lib | 14,885 | 42.28% | 212 | 0.60% | 73.79% | 14,673 | 14,885 | 5,645 | – | – | – | 35,203 |
| York North | | PC | | PC | 15,557 | 52.39% | 7,514 | 25.30% | 73.16% | 15,557 | 6,094 | 8,043 | – | – | – | 29,694 |
| Armourdale | | PC | | PC | 16,055 | 49.99% | 7,511 | 23.39% | 74.05% | 16,055 | 8,544 | 7,519 | – | – | – | 32,118 |
| Beaches—Woodbine | | NDP | | PC | 13,768 | 49.25% | 2,630 | 9.41% | 73.73% | 13,768 | 2,819 | 11,138 | 88 | – | 145 | 27,958 |
| Bellwoods | | PC | | PC | 7,443 | 51.71% | 3,839 | 26.67% | 69.73% | 7,443 | 3,347 | 3,604 | – | – | – | 14,394 |
| Don Mills | | PC | | PC | 16,102 | 50.80% | 5,986 | 18.88% | 74.18% | 16,102 | 5,481 | 10,116 | – | – | – | 31,699 |
| Dovercourt | | Lib | | PC | 6,183 | 34.60% | 39 | 0.22% | 66.65% | 6,183 | 5,116 | 6,144 | – | 429 | – | 17,872 |
| Downsview | | Lib | | Lib | 17,140 | 52.25% | 6,219 | 18.96% | 68.42% | 4,740 | 17,140 | 10,921 | – | – | – | 32,801 |
| Eglinton | | PC | | PC | 20,242 | 57.06% | 10,005 | 28.20% | 78.82% | 20,242 | 10,237 | 4,819 | 180 | – | – | 35,478 |
| Etobicoke | | Lib | | Lib | 16,676 | 39.79% | 943 | 2.25% | 75.56% | 15,733 | 16,676 | 9,072 | 432 | – | – | 41,913 |
| High Park | | NDP | | NDP | 16,509 | 54.58% | 7,282 | 24.07% | 74.39% | 9,227 | 4,284 | 16,509 | – | – | 229 | 30,249 |
| Humber | | Lib | | PC | 11,235 | 41.48% | 3,055 | 11.28% | 72.61% | 11,235 | 7,673 | 8,180 | – | – | – | 27,088 |
| Lakeshore | | NDP | | NDP | 10,867 | 42.36% | 735 | 2.87% | 75.42% | 10,132 | 4,653 | 10,867 | – | – | – | 25,652 |
| Parkdale | | Lib | | NDP | 5,994 | 36.37% | 436 | 2.65% | 66.60% | 4,930 | 5,558 | 5,994 | – | – | – | 16,482 |
| Riverdale | | NDP | | NDP | 11,132 | 49.27% | 2,518 | 11.14% | 65.04% | 8,614 | 2,503 | 11,132 | – | – | 346 | 22,595 |
| St. Andrew—St. Patrick | | PC | | PC | 9,588 | 46.61% | 1,137 | 5.53% | 68.33% | 9,588 | 1,860 | 8,451 | 275 | 231 | 164 | 20,569 |
| St. David | | PC | | PC | 13,320 | 50.07% | 5,291 | 19.89% | 70.46% | 13,320 | 4,934 | 8,029 | – | – | 320 | 26,603 |
| St. George | | PC | | PC | 16,916 | 55.44% | 9,492 | 31.11% | 67.58% | 16,916 | 7,424 | 5,801 | 374 | – | – | 30,515 |
| Scarborough Centre | | NDP | | PC | 15,781 | 48.36% | 4,873 | 14.93% | 73.04% | 15,781 | 4,962 | 10,908 | 984 | – | – | 32,635 |
| Scarborough East | | Lib | | PC | 13,206 | 40.94% | 670 | 2.08% | 73.51% | 13,206 | 12,536 | 6,514 | – | – | – | 32,256 |
| Scarborough North | | PC | | PC | 24,982 | 56.16% | 12,023 | 27.03% | 80.39% | 24,982 | 6,235 | 12,959 | 308 | – | – | 44,484 |
| Scarborough West | | NDP | | NDP | 13,092 | 38.96% | 170 | 0.51% | 73.50% | 12,922 | 7,594 | 13,092 | – | – | – | 33,608 |
| York East | | PC | | PC | 17,830 | 50.69% | 7,890 | 22.43% | 74.83% | 17,830 | 9,940 | 7,402 | – | – | – | 35,172 |
| York-Forest Hill | | PC | | Lib | 13,870 | 41.52% | 1,300 | 3.89% | 72.89% | 12,570 | 13,870 | 6,963 | – | – | – | 33,403 |
| York Mills | | PC | | PC | 41,629 | 59.12% | 23,007 | 32.68% | 73.87% | 41,629 | 18,622 | 10,159 | – | – | – | 70,410 |
| York South | | NDP | | NDP | 12,915 | 48.01% | 2,877 | 10.69% | 69.53% | 10,038 | 3,949 | 12,915 | – | – | – | 26,902 |
| York West | | PC | | PC | 26,034 | 59.41% | 13,582 | 30.99% | 77.66% | 26,034 | 12,452 | 5,335 | – | – | – | 43,821 |
| Yorkview | | NDP | | NDP | 20,660 | 43.38% | 6,630 | 13.92% | 71.37% | 12,550 | 14,030 | 20,660 | – | 391 | – | 47,631 |
* ↑ including spoilt ballots
* ↑ order is as given in EO reports
    = open seat
    = turnout is above provincial average
    = winning candidate was in previous Legislature
    = not incumbent; was previously elected to the Legislature
    = incumbent had switched allegiance
    = incumbency arose from byelection gain
    = previously incumbent in another riding
    = other incumbents renominated

### Analysis

Party candidates in 2nd place :
| Party in 1st place | Party in 1st place | Party in 2nd place | Party in 2nd place | Party in 2nd place | Party in 2nd place | Total |
| Party in 1st place | Party in 1st place | PC | Lib | NDP | Ind | Total |
| | Progressive Conservative | | 40 | 37 | 1 | 78 |
| | Liberal | 15 | | 5 | | 20 |
| | New Democratic | 15 | 4 | | | 19 |
| Total | Total | 30 | 44 | 42 | 1 | 117 |
Candidates ranked 1st to 5th place, by party :
| Parties | 1st | 2nd | 3rd | 4th | 5th |
| █ Progressive Conservative | 78 | 30 | 9 | | |
| █ Liberal | 20 | 44 | 53 | | |
| █ New Democratic | 19 | 42 | 54 | 2 | |
| █ Independent | | 1 | 1 | 20 | 1 |
| █ Social Credit | | | | 4 | |
| █ Communist | | | | 3 | 2 |
Resulting composition of the 28th Legislative Assembly :
| Source | Source | Party | Party | Party | Party |
| Source | Source | PC | Lib | NDP | Total |
| Seats retained | Incumbents returned | 50 | 17 | 13 | 80 |
| Seats retained | Open seats held | 15 | | 1 | 16 |
| Seats retained | Byelection loss reversed | 1 | | | 1 |
| Seats changing hands | Incumbents defeated | 10 | 1 | 2 | 13 |
| Seats changing hands | Open seats gained | 2 | 1 | 3 | 6 |
| Seats changing hands | Incumbent changed allegiance | | 1 | | 1 |
| Total | Total | 78 | 20 | 19 | 117 |

### Seats changing hands

Of the 117 seats, 22 were open because of MPPs who chose not to stand for reelection, and voters in only 19 seats changed allegiance from the previous election in 2018.
Tom Reid (Rainy River) had previously campaigned on the Liberal-Labour ticket, but sat with the Liberal caucus. In 1971, he opted to stand as a Liberal instead.
Elections to the 29th Legislative Assembly of Ontario – seats won/lost by party, 1967-1971 :
| Party | Party | 1967 | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | 1971 |
| Party | Party | 1967 | PC | PC | Lib | Lib | NDP | NDP | | 1971 |
| | Progressive Conservative | 69 | | | 6 | (1) | 6 | (2) | 78 |
| | Liberal | 28 | 2 | (6) | | | | (4) | 20 |
| | New Democratic | 20 | 1 | (6) | 4 | | | | 19 |
| Total | Total | 117 | 3 | (12) | 10 | (1) | 6 | (6) | 117 |
There were 19 seats that changed allegiance in the election: