# 1943 Ontario general election

The 1943 Ontario general election was held on August 4, 1943, to elect the 90 Members of the 21st Legislative Assembly of Ontario (Members of Provincial Parliament, or "MPPs") of the Province of Ontario.

## Background

Because of the outbreak of war, the Legislative Assembly had passed Acts in 1942 and 1943 to defer the calling of a general election. The latter extension had received royal assent in April 1943, but Premier Harry Nixon came into office the following month and opted to call an earlier election on June 30, 1943 for August 4, 1943. Noting that the last extension had been vigorously opposed by the Progressive Conservative opposition, he said, "We know of no precedent in the British Empire where a parliament extended its own life against an opposition vote."

## Campaign

Riding contests, by number of candidates (1943) :
| Candidates | PC | CCF | Lib | Lab | Ind-Lib | Other | Total |
| 2 | 3 | | 3 | | | | 6 |
| 3 | 75 | 74 | 74 | | 1 | 1 | 225 |
| 4 | 9 | 9 | 9 | 2 | 1 | 6 | 36 |
| 5 | 3 | 3 | 3 | | 2 | 4 | 15 |
| Total | 90 | 86 | 89 | 2 | 4 | 11 | 282 |

## Outcome

The Ontario Progressive Conservative Party, led by George Drew, defeated the Ontario Liberal Party government. The Liberal government had disintegrated over the previous two years because of a conflict between Mitchell Hepburn, the Ontario caucus and the federal Liberal Party of Canada.
Hepburn resigned and was eventually succeeded by Harry Nixon in early 1943. The change in leadership was not enough to save the government. The election held later that year resulted in the Conservative Party, recently renamed the "Progressive Conservative Party", winning a minority government. This began forty-two uninterrupted years of government by the Tories who combined moderate progressive policies with pragmatism and caution.
The Liberals fell to third place behind a new force, the socialist Ontario Co-operative Commonwealth Federation (CCF), led by Ted Jolliffe, went from obscurity to form the Official Opposition, winning 32% of the vote and 34 seats in the legislature, just four short of Drew's Tories. The Liberals and their Liberal-Progressive allies fell from 66 seats to a mere 15.
Two members of the banned Communist Party of Ontario running as "Labour" candidates won seats in the Legislature for the first time in this election: A.A. MacLeod in the Toronto riding of Bellwoods, and J.B. Salsberg in the Toronto riding of St. Andrews. Several days following the election the Labor-Progressive Party was officially formed and Salsberg and MacLeod agreed to sit in the legislature as the party's representatives.
The Legislature's first two female MPPs were elected in 1943:
First female MPPs (1943) :
| Party | Party | MPP | MPP | Riding |
| | CCF | | Rae Luckock | Bracondale |
| | CCF | | Agnes Macphail | York East |

## Results

Elections to the 21st Parliament of Ontario (1943) :
| Political party | Political party | Party leader | MPPs | MPPs | MPPs | MPPs | MPPs | Votes | Votes | Votes |
| Political party | Political party | Party leader | Candidates | 1937 | Dissol. | 1943 | ± | # | % | ± (pp) |
| | Progressive Conservative | George Drew | 90 | 23 | 19 | 38 | 15 | 469,672 | 35.75% | 3.69 |
| | Co-operative Commonwealth | Ted Jolliffe | 86 | – | – | 34 | 34 | 415,441 | 31.62% | 26.30 |
| | Liberal | Harry Nixon | 89 | 62 | 59 | 15 | 51 | 399,185 | 30.38% | 20.65 |
| | Liberal–Progressive | | – | 3 | 2 | – | 51 | – | – | 20.65 |
| | United Farmers | | – | 1 | – | – | 51 | – | – | 20.65 |
| | Labour | | 2 | – | – | 2 | 2 | 11,888 | 0.90% | 0.15 |
| | Independent Liberal | | 4 | 1 | – | 1 | | 10,123 | 0.77% | 0.55 |
| | Independent Labour | | 2 | – | – | – | | 2,215 | 0.17% | 0.16 |
| | Independent | | 3 | – | – | – | | 2,540 | 0.19% | 0.06 |
| | Independent-CCF | | 1 | – | – | – | | 1,566 | 0.12% | New |
| | Socialist Labour | | 3 | – | – | – | | 740 | 0.06% | 0.08 |
| | Soldier | | 2 | – | – | – | | 569 | 0.04% | New |
| | Vacant | | | | 10 | | | | | |
| Total | Total | Total | 282 | 90 | 90 | 90 | | 1,313,939 | 100.00% | |
| Blank and invalid ballots | Blank and invalid ballots | Blank and invalid ballots | Blank and invalid ballots | Blank and invalid ballots | Blank and invalid ballots | Blank and invalid ballots | Blank and invalid ballots | 10,746 | | |
| Registered voters / turnout | Registered voters / turnout | Registered voters / turnout | Registered voters / turnout | Registered voters / turnout | Registered voters / turnout | Registered voters / turnout | Registered voters / turnout | 2,269,895 | 58.36% | 12.93 |
* ↑ "1943 General Election (Summary)". elections.on.ca. Elections Ontario. Retrieved August 21, 2023.
* ↑ Roland Patterson (Grey North), Thomas Aston Blakelock (Halton) and Douglas Munro Campbell (Kent East) ran as Liberal candidates in 1943.
* ↑ Farquhar Oliver (Grey South) became a Liberal on February 24, 1941, upon joining the Cabinet.
* ↑ A. A. MacLeod (Bellwoods) and J. B. Salsberg (St. Andrew) were elected under the Labour ticket, but switched to the new Labor-Progressive Party on its formation shortly after the election.
* ↑ Morrison Mann MacBride (Brantford) died in June 1938. Mitchell Hepburn (Elgin) opted not to run as a Liberal candidate in 1943.
Seats and popular vote by party :
| Party | Seats | Votes | Change (pp) | Change (pp) |
| █ Progressive Conservative | 38 / 90 | 35.75% | -3.69 | |
| █ Co-operative Commonwealth | 34 / 90 | 31.62% | 26.30 | 26.3 |
| █ Liberal/Lib-Prog/UFO | 15 / 90 | 30.38% | -20.65 | |
| █ Other | 3 / 90 | 2.41% | -1.96 | |

### Synopsis of results

Results by riding - 1943 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 | Votes |
| Name | 1937 | 1937 | Party | Party | Votes | Share | Margin # | Margin % | Turnout | PC | CCF | Lib | Lab | Ind-Lib | Ind | Other | Total |
| Addington | | Con | | PC | 5,628 | 51.36% | 1,752 | 15.99% | 73.55% | 5,628 | 1,453 | 3,876 | – | – | – | – | 10,957 |
| Algoma—Manitoulin | | Lib | | Lib | 3,755 | 39.03% | 729 | 7.58% | 63.52% | 2,839 | 3,026 | 3,755 | – | – | – | – | 9,620 |
| Brant | | Lib | | Lib | 5,745 | 56.79% | 3,505 | 34.65% | 52.48% | 2,240 | 2,131 | 5,745 | – | – | – | – | 10,116 |
| Brantford | | Ind-Lib | | CCF | 5,327 | 39.73% | 1,045 | 7.79% | 61.93% | 3,800 | 5,327 | 4,282 | – | – | – | – | 13,409 |
| Bruce | | Lib | | Lib | 5,066 | 38.51% | 76 | 0.58% | 64.34% | 4,990 | 3,100 | 5,066 | – | – | – | – | 13,156 |
| Carleton | | Con | | PC | 5,796 | 54.79% | 2,522 | 23.84% | 51.98% | 5,796 | 1,508 | 3,274 | – | – | – | – | 10,578 |
| Cochrane North | | Lib | | CCF | 3,709 | 46.18% | 414 | 5.16% | 74.91% | 1,027 | 3,709 | 3,295 | – | – | – | – | 8,031 |
| Cochrane South* | | Lib | | CCF | 12,995 | 57.01% | 7,400 | 32.46% | 67.37% | 4,205 | 12,995 | 5,595 | – | – | – | – | 22,795 |
| Dufferin—Simcoe | | Con | | PC | 5,134 | 49.79% | 2,513 | 24.37% | 48.90% | 5,134 | 2,557 | 2,621 | – | – | – | – | 10,312 |
| Durham | | Lib | | PC | 4,412 | 40.70% | 286 | 2.64% | 67.13% | 4,412 | 2,303 | 4,126 | – | – | – | – | 10,841 |
| Elgin | | Lib | | Ind-Lib | 6,879 | 50.66% | 2,605 | 19.19% | 57.30% | 4,274 | 2,425 | – | – | 6,879 | – | – | 13,578 |
| Essex North | | Lib | | CCF | 7,999 | 53.59% | 4,846 | 32.46% | 58.65% | 2,405 | 7,999 | 3,153 | – | 1,213 | – | 157 | 14,927 |
| Essex South | | Lib | | PC | 3,940 | 41.51% | 132 | 1.39% | 49.25% | 3,940 | 1,743 | 3,808 | – | – | – | – | 9,491 |
| Fort William* | | Con | | CCF | 8,701 | 60.36% | 5,620 | 38.98% | 66.56% | 3,081 | 8,701 | 2,634 | – | – | – | – | 14,416 |
| Glengarry | | Lib | | Lib | 4,495 | 59.60% | 1,934 | 25.64% | 54.15% | 2,561 | 486 | 4,495 | – | – | – | – | 7,542 |
| Grenville—Dundas | | Con | | PC | 6,829 | 64.92% | 3,139 | 29.84% | 48.65% | 6,829 | – | 3,690 | – | – | – | – | 10,519 |
| Grey North | | L-P | | Lib | 4,826 | 37.52% | 385 | 2.99% | 65.35% | 4,441 | 3,596 | 4,826 | – | – | – | – | 12,863 |
| Grey South | | UFO | | Lib | 5,617 | 50.46% | 2,266 | 20.36% | 63.96% | 3,351 | 2,164 | 5,617 | – | – | – | – | 11,132 |
| Haldimand—Norfolk | | Lib | | PC | 7,868 | 44.90% | 791 | 4.51% | 61.62% | 7,868 | 2,577 | 7,077 | – | – | – | – | 17,522 |
| Halton | | L-P | | PC | 4,474 | 38.51% | 832 | 7.16% | 58.89% | 4,474 | 3,391 | 3,642 | – | – | 111 | – | 11,618 |
| Hamilton East | | Lib | | CCF | 6,739 | 34.35% | 1,079 | 5.50% | 61.82% | 5,660 | 6,739 | 4,821 | – | – | – | 2,397 | 19,617 |
| Hamilton Centre | | Lib | | CCF | 8,592 | 47.30% | 3,578 | 19.70% | 54.23% | 5,014 | 8,592 | 4,560 | – | – | – | – | 18,166 |
| Hamilton—Wentworth | | Lib | | CCF | 6,433 | 36.27% | 583 | 3.29% | 64.19% | 5,850 | 6,433 | 5,453 | – | – | – | – | 17,736 |
| Hastings East* | | Con | | PC | 4,715 | 51.55% | 1,414 | 15.46% | 65.53% | 4,715 | 1,130 | 3,301 | – | – | – | – | 9,146 |
| Hastings West | | Con | | PC | 6,530 | 47.91% | 2,423 | 17.78% | 60.85% | 6,530 | 2,994 | 4,107 | – | – | – | – | 13,631 |
| Huron | | Lib | | PC | 4,889 | 44.00% | 470 | 4.23% | 63.64% | 4,889 | 1,803 | 4,419 | – | – | – | – | 11,111 |
| Huron—Bruce* | | Lib | | PC | 4,588 | 38.00% | 156 | 1.29% | 66.98% | 4,588 | 3,053 | 4,432 | – | – | – | – | 12,073 |
| Kenora | | Lib | | CCF | 4,891 | 51.77% | 1,861 | 19.70% | 70.39% | 1,527 | 4,891 | 3,030 | – | – | – | – | 9,448 |
| Kent East | | L-P | | PC | 6,800 | 58.23% | 1,923 | 16.47% | 71.48% | 6,800 | – | 4,877 | – | – | – | – | 11,677 |
| Kent West | | Lib | | Lib | 7,969 | 52.00% | 2,575 | 16.80% | 56.19% | 5,394 | 1,963 | 7,969 | – | – | – | – | 15,326 |
| Kingston* | | Con | | PC | 6,555 | 46.49% | 1,380 | 9.79% | 60.82% | 6,555 | 2,370 | 5,175 | – | – | – | – | 14,100 |
| Lambton East | | Lib | | Lib | 4,520 | 47.34% | 778 | 8.15% | 55.41% | 3,742 | 1,285 | 4,520 | – | – | – | – | 9,547 |
| Lambton West | | Lib | | CCF | 4,967 | 35.14% | 337 | 2.38% | 68.34% | 4,537 | 4,967 | 4,630 | – | – | – | – | 14,134 |
| Lanark | | Con | | PC | 7,126 | 55.95% | 3,242 | 25.46% | 62.15% | 7,126 | 1,726 | 3,884 | – | – | – | – | 12,736 |
| Leeds | | Con | | PC | 7,666 | 51.52% | 2,284 | 15.35% | 67.00% | 7,666 | 1,833 | 5,382 | – | – | – | – | 14,881 |
| Lincoln* | | Lib | | PC | 10,139 | 41.46% | 2,701 | 11.04% | 62.59% | 10,139 | 7,438 | 6,880 | – | – | – | – | 24,457 |
| London | | Lib | | PC | 10,312 | 40.65% | 2,360 | 9.30% | 61.20% | 10,312 | 7,952 | 7,103 | – | – | – | – | 25,367 |
| Middlesex North | | Lib | | PC | 4,670 | 39.00% | 780 | 6.51% | 62.32% | 4,670 | 3,414 | 3,890 | – | – | – | – | 11,974 |
| Middlesex South | | Lib | | PC | 5,313 | 48.13% | 1,044 | 9.46% | 57.80% | 5,313 | 1,458 | 4,269 | – | – | – | – | 11,040 |
| Muskoka—Ontario | | Lib | | Lib | 4,219 | 34.84% | 88 | 0.73% | 56.59% | 4,131 | 3,759 | 4,219 | – | – | – | – | 12,109 |
| Niagara Falls | | Lib | | CCF | 7,519 | 45.76% | 2,462 | 14.98% | 61.66% | 3,856 | 7,519 | 5,057 | – | – | – | – | 16,432 |
| Nipissing | | Lib | | CCF | 5,642 | 40.75% | 1,637 | 11.82% | 60.90% | 2,327 | 5,642 | 4,005 | – | 1,871 | – | – | 13,845 |
| Northumberland | | Lib | | PC | 7,412 | 53.45% | 2,136 | 15.40% | 68.92% | 7,412 | 1,178 | 5,276 | – | – | – | – | 13,866 |
| Ontario* | | Lib | | CCF | 8,745 | 44.07% | 3,170 | 15.97% | 64.58% | 5,525 | 8,745 | 5,575 | – | – | – | – | 19,845 |
| Ottawa East | | Lib | | Lib | 11,004 | 74.70% | 8,193 | 55.62% | 43.03% | 2,811 | – | 11,004 | – | – | 916 | – | 14,731 |
| Ottawa South | | Con | | PC | 11,870 | 43.94% | 2,559 | 9.47% | 46.69% | 11,870 | 5,579 | 9,311 | – | – | – | 252 | 27,012 |
| Oxford | | Lib | | PC | 7,207 | 41.73% | 1,461 | 8.46% | 58.22% | 7,207 | 4,319 | 5,746 | – | – | – | – | 17,272 |
| Parry Sound | | Lib | | CCF | 4,221 | 40.90% | 889 | 8.61% | 61.36% | 2,768 | 4,221 | 3,332 | – | – | – | – | 10,321 |
| Peel | | Con | | PC | 7,101 | 50.27% | 3,331 | 23.58% | 62.15% | 7,101 | 3,254 | 3,770 | – | – | – | – | 14,125 |
| Perth | | Lib | | Lib | 7,563 | 39.29% | 18 | 0.09% | 59.20% | 7,545 | 4,143 | 7,563 | – | – | – | – | 19,251 |
| Peterborough | | Lib | | PC | 6,884 | 38.82% | 800 | 4.51% | 61.99% | 6,884 | 4,763 | 6,084 | – | – | – | – | 17,731 |
| Port Arthur | | Lib | | CCF | 7,929 | 54.28% | 3,919 | 26.83% | 73.97% | 2,668 | 7,929 | 4,010 | – | – | – | – | 14,607 |
| Prescott | | Lib | | Lib | 5,291 | 55.72% | 1,614 | 17.00% | 61.42% | 528 | 3,677 | 5,291 | – | – | – | – | 9,496 |
| Prince Edward—Lennox | | Con | | PC | 5,863 | 52.64% | 1,307 | 11.74% | 60.40% | 5,863 | 718 | 4,556 | – | – | – | – | 11,137 |
| Rainy River | | Lib | | CCF | 2,600 | 39.37% | 574 | 8.69% | 69.59% | 1,978 | 2,600 | 2,026 | – | – | – | – | 6,604 |
| Renfrew North | | Lib | | PC | 4,185 | 40.82% | 606 | 5.91% | 69.61% | 4,185 | 2,489 | 3,579 | – | – | – | – | 10,253 |
| Renfrew South | | Lib | | Lib | 4,921 | 53.80% | 695 | 7.60% | 58.66% | 4,226 | – | 4,921 | – | – | – | – | 9,147 |
| Russell | | Lib | | Lib | 4,092 | 56.50% | 1,996 | 27.56% | 42.02% | 2,096 | 1,054 | 4,092 | – | – | – | – | 7,242 |
| Sault Ste. Marie | | Lib | | CCF | 7,173 | 55.70% | 4,104 | 31.87% | 65.09% | 2,637 | 7,173 | 3,069 | – | – | – | – | 12,879 |
| Simcoe Centre | | Lib | | PC | 4,176 | 41.99% | 584 | 5.87% | 55.51% | 4,176 | 2,177 | 3,592 | – | – | – | – | 9,945 |
| Simcoe East | | Con | | PC | 4,766 | 43.76% | 1,622 | 14.89% | 59.42% | 4,766 | 2,980 | 3,144 | – | – | – | – | 10,890 |
| Stormont | | Lib | | PC | 5,860 | 42.45% | 686 | 4.97% | 64.72% | 5,860 | 2,772 | 5,174 | – | – | – | – | 13,806 |
| Sudbury | | Lib | | CCF | 15,169 | 59.89% | 7,587 | 29.96% | 68.43% | 1,062 | 15,169 | 7,582 | – | – | 1,513 | – | 25,326 |
| Temiskaming | | Lib | | CCF | 5,219 | 54.18% | 2,370 | 24.60% | 71.97% | 1,565 | 5,219 | 2,849 | – | – | – | – | 9,633 |
| Victoria | | Con | | PC | 6,985 | 57.36% | 2,943 | 24.17% | 62.15% | 6,985 | 1,150 | 4,042 | – | – | – | – | 12,177 |
| Waterloo North | | Lib | | CCF | 7,570 | 41.10% | 1,115 | 6.05% | 49.76% | 4,392 | 7,570 | 6,455 | – | – | – | – | 18,417 |
| Waterloo South | | Lib | | CCF | 6,831 | 45.62% | 1,958 | 13.08% | 58.13% | 3,269 | 6,831 | 4,873 | – | – | – | – | 14,973 |
| Welland | | Lib | | CCF | 8,256 | 47.35% | 3,239 | 18.58% | 59.73% | 4,163 | 8,256 | 5,017 | – | – | – | – | 17,436 |
| Wellington North | | Lib | | Lib | 5,556 | 48.82% | 1,358 | 11.93% | 56.64% | 4,198 | 1,626 | 5,556 | – | – | – | – | 11,380 |
| Wellington South | | Lib | | CCF | 4,753 | 38.75% | 848 | 6.91% | 59.76% | 3,905 | 4,753 | 3,607 | – | – | – | – | 12,265 |
| Wentworth | | Lib | | CCF | 9,963 | 51.21% | 4,680 | 24.05% | 58.73% | 5,283 | 9,963 | 4,210 | – | – | – | – | 19,456 |
| Windsor—Walkerville | | Lib | | CCF | 6,711 | 44.24% | 2,377 | 15.67% | 58.41% | 4,124 | 6,711 | 4,334 | – | – | – | – | 15,169 |
| Windsor—Sandwich | | Lib | | CCF | 6,455 | 43.51% | 1,332 | 8.98% | 50.63% | 5,123 | 6,455 | 3,256 | – | – | – | – | 14,834 |
| York East | | Con | | CCF | 13,384 | 45.47% | 1,740 | 5.91% | 52.30% | 11,644 | 13,384 | 4,410 | – | – | – | – | 29,438 |
| York North | | Lib | | CCF | 6,266 | 36.25% | 531 | 3.07% | 56.94% | 5,735 | 6,266 | 5,283 | – | – | – | – | 17,284 |
| York South | | Con | | CCF | 11,024 | 49.32% | 2,484 | 11.11% | 48.09% | 8,540 | 11,024 | 2,788 | – | – | – | – | 22,352 |
| York West | | Lib | | CCF | 10,720 | 42.05% | 1,308 | 5.13% | 53.77% | 9,412 | 10,720 | 5,364 | – | – | – | – | 25,496 |
| Beaches | | Con | | PC | 6,926 | 43.75% | 42 | 0.27% | 59.02% | 6,926 | 6,884 | 2,021 | – | – | – | – | 15,831 |
| Bellwoods* | | Lib | | Lab | 4,312 | 30.37% | 526 | 3.70% | 53.58% | 3,786 | 2,681 | 3,420 | 4,312 | – | – | – | 14,199 |
| Bracondale | | Lib | | CCF | 4,681 | 38.56% | 286 | 2.36% | 49.88% | 4,395 | 4,681 | 2,765 | – | – | – | 298 | 12,139 |
| Dovercourt | | Con | | PC | 7,265 | 43.47% | 2,002 | 11.98% | 49.39% | 7,265 | 5,263 | 2,618 | – | – | – | 1,566 | 16,712 |
| Eglinton | | Lib | | PC | 13,832 | 50.23% | 6,887 | 25.01% | 59.15% | 13,832 | 6,759 | 6,945 | – | – | – | – | 27,536 |
| High Park* | | Con | | PC | 7,953 | 41.83% | 466 | 2.45% | 59.33% | 7,953 | 7,487 | 3,422 | – | – | – | 149 | 19,011 |
| Parkdale | | Con | | PC | 9,256 | 44.58% | 2,086 | 10.05% | 55.22% | 9,256 | 7,170 | 4,339 | – | – | – | – | 20,765 |
| Riverdale | | Con | | CCF | 7,640 | 44.15% | 218 | 1.26% | 49.15% | 7,422 | 7,640 | 2,244 | – | – | – | – | 17,306 |
| St. Andrew | | Lib | | Lab | 7,576 | 53.13% | 5,071 | 35.56% | 56.44% | 2,505 | 1,811 | 2,368 | 7,576 | – | – | – | 14,260 |
| St. David | | Lib | | CCF | 5,678 | 41.11% | 619 | 4.48% | 55.13% | 5,059 | 5,678 | 3,074 | – | – | – | – | 13,811 |
| St. George* | | Lib | | PC | 7,205 | 46.81% | 2,764 | 17.96% | 49.46% | 7,205 | 4,441 | 3,316 | – | 160 | – | 271 | 15,393 |
| St. Patrick | | Lib | | PC | 4,694 | 43.71% | 1,616 | 15.05% | 52.33% | 4,694 | 3,078 | 2,967 | – | – | – | – | 10,739 |
| Woodbine | | Con | | CCF | 8,848 | 47.92% | 1,616 | 8.75% | 54.10% | 7,232 | 8,848 | 2,385 | – | – | – | – | 18,465 |
* ↑ "1943 General Election (Summary)". elections.on.ca. Elections Ontario. Retrieved August 21, 2023.
* ↑ Party affiliations verified with "Tabulation Of Vote For Constituencies; Other Election Gleanings". Ottawa Citizen. August 5, 1943. p. 15.
* ↑ Turnouts verified with "Sessional Paper No. 40: Return from the records of the General Election to the Legislative Assembly in 1943". Sessional Papers, No. LXXVI - Part IV. Toronto: King's Printer. 1944. pp. 6–7.
* ↑ including spoilt ballots
* ↑ order is as given in EO reports
* - seat was vacant when election called
    = open seat
    = turnout is above provincial average
    = winning candidate was in previous Legislature
    = incumbent switched allegiance for the election
    = incumbency arose from byelection gain
    = previously incumbent in another riding
    = other incumbents renominated
    = previously an MP in the House of Commons of Canada
    = multiple candidates

### 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 | Total |
| Party in 1st place | Party in 1st place | PC | CCF | Lib | Total |
| | Progressive Conservative | | 8 | 30 | 38 |
| | Co-operative Commonwealth | 15 | | 19 | 34 |
| | Liberal | 13 | 2 | | 15 |
| | Labour | 2 | | | 2 |
| | Independent Liberal | 1 | | | 1 |
| Total | Total | 31 | 10 | 49 | 90 |
Candidates ranked 1st to 5th place, by party :
| Parties | 1st | 2nd | 3rd | 4th | 5th | Total |
| █ Progressive Conservative | 38 | 31 | 20 | 1 | | 90 |
| █ Co-operative Commonwealth | 34 | 10 | 40 | 2 | | 86 |
| █ Liberal | 15 | 49 | 25 | | | 89 |
| █ Labour | 2 | | | | | 2 |
| █ Independent Liberal | 1 | | | 2 | 1 | 4 |
| █ Independent | | | 2 | 1 | | 3 |
| █ Socialist Labour | | | | 2 | 1 | 3 |
| █ Soldier | | | | 2 | | 2 |
| █ Independent Labour | | | | 1 | 1 | 2 |
| █ Independent-CCF | | | | 1 | | 1 |

### Seats that changed hands

Elections to the 21st Parliament of Ontario – seats won/lost by party, 1937–1943 :
| Party | Party | 1937 | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | Gain from (loss to) | 1943 |
| Party | Party | 1937 | PC | PC | CCF | CCF | Lib | Lib | Lbr-P | Lbr-P | I-Lib | I-Lib | L-Pro | L-Pro | UFO | UFO | | 1943 |
| | Progressive Conservative | 23 | | | | (5) | 19 | | | | | | 1 | | | | 38 |
| | Co-operative Commonwealth | – | 5 | | | | 28 | | | | 1 | | | | | | 34 |
| | Liberal | 63 | | (19) | | (28) | | | | (2) | | (1) | 1 | | 1 | | 15 |
| | Labor–Progressive | – | | | | | 2 | | | | | | | | | | 2 |
| | Independent-Liberal | 1 | | | | (1) | 1 | | | | | | | | | | 1 |
| | Liberal–Progressive | 2 | | (1) | | | | (1) | | | | | | | | | – |
| | United Farmers | 1 | | | | | | (1) | | | | | | | | | – |
| Total | Total | 90 | 5 | (20) | – | (34) | 50 | (2) | – | (2) | 1 | (1) | 1 | – | 1 | – | 90 |
* ↑ Morrison Mann MacBride (Brantford) had died in office in 1938. Mitchell Hepburn (Elgin) was re-elected as an Independent-Liberal in 1943
* ↑ Roland Patterson (Grey North) was re-elected as a Liberal, while Douglas Campbell (Kent East) retired from the legislature.
* ↑ Farquhar Oliver (Grey South) was re-elected as a Liberal.
There were 58 seats that changed allegiance in the election.
Resulting composition of the 21st Legislative Assembly of Ontario :
| Source | Source | Party | Party | Party | Party | Party | Party |
| Source | Source | PC | CCF | Lib | Lab | I-Lib | Total |
| Seats retained | Incumbents returned | 13 | | 15 | | | 28 |
| Seats retained | Open seats held (vacant) | 3 | | | | | 3 |
| Seats retained | Open seats held (other) | 2 | | | | | 2 |
| Seats retained | Incumbent changed allegiance | | | | | 1 | 1 |
| Seats changing hands | Incumbents defeated | 13 | 23 | | 1 | | 37 |
| Seats changing hands | Open seats gained (vacant) | 3 | 3 | | 1 | | 7 |
| Seats changing hands | Open seats gained (other) | 4 | 7 | | | | 11 |
| Seats changing hands | Ouster of byelection gain by third party | | 1 | | | | 1 |
| Total | Total | 38 | 34 | 15 | 2 | 1 | 90 |