# Markham—Unionville (federal electoral district)

Markham—Unionville is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 2004.

## Boundaries

Markham—Unionville is located in the City of Markham within an area bordered by a line commencing at the Highway 404-407 interchange, then east along Highway 407 to McCowan Road, north on McCowan Road to 16th Avenue, east on 16th to Highway 48, then to the northern city limit, then along the northern and western city boundaries to the 404-407 interchange.

## Demographics

    According to the 2021 Canadian census
Ethnic groups: 66.6% Chinese, 12.1% White, 9.9% South Asian, 2% Black, 1.4% Filipino, 1.2% West Asian Languages: 29.5% Yue, 28.4% English, 20.7% Mandarin, 1.6% Tamil Religions: 51.2% No religion, 33.3% Christian (14.8% Catholic, 2.5% Christian Orthodox, 1.5% Baptist), 4.8% Buddhist, 4.8% Hindu, 4.8% Muslim Median income (2020): $34,000
Average income (2020): $52,900

## History

It is located in the province of Ontario and covers suburban areas north of Toronto. It was created in 2003 from the former Markham riding. The federal riding was first represented by John McCallum until he switched to the newly formed Markham—Thornhill riding for the 2015 election. Markham—Unionville was the only seat that the Liberals lost among those they held after the 2011 election, though the riding's boundaries changed considerably and would have been won by the Conservatives in 2011 based on the redistributed results.
54% of Markham—Unionville's territory (mostly south of Highway 407) was redistributed into the new Markham—Thornhill riding for the 2015 election. The area north of Highway 407 and west of McCowan Road remained in Markham—Unionville. The new Markham—Unionville riding also gained new territoryin the northwest corner of the city of Markham which were previously in the riding of Oak Ridges—Markham. 51% of the new riding came from Oak Ridges—Markham.

## Members of Parliament

The riding has elected the following members of Parliament:
| Parliament | Years | Member | Party |
| Markham—Unionville Riding created from Markham |||||
| 38th | 2004–2006 | John McCallum | Liberal |
| 39th | 2006–2008 | John McCallum | Liberal |
| 40th | 2008–2011 | John McCallum | Liberal |
| 41st | 2011–2015 | John McCallum | Liberal |
| 42nd | 2015–2019 | Bob Saroya | Conservative |
| 43rd | 2019–2021 | Bob Saroya | Conservative |
| 44th | 2021–present | Paul Chiang | Liberal |

## Election results
### 2015-present

vte2021 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Liberal | Paul Chiang | 21,958 | 48.6 | +10.24 | $110,433.44 |
| | Conservative | Bob Saroya | 18,959 | 41.9 | -7.04 | $99,523.48 |
| | New Democratic | Aftab Qureshi | 3,001 | 6.6 | — | $7,138.72 |
| | Green | Elvin Kao | 1,306 | 2.9 | -1.56 | $3,056.16 |
| Total valid votes/expense limit | Total valid votes/expense limit | Total valid votes/expense limit | 45,224 | – | – | $116,665.09 |
| Total rejected ballots | Total rejected ballots | Total rejected ballots | 452 |
| Turnout | Turnout | Turnout | 45,676 | 52.0 | -8.9 |
| Eligible voters | Eligible voters | Eligible voters | 87,781 |
| | Liberal gain from Conservative | Liberal gain from Conservative | Swing | Swing | +8.64 |
| Source: Elections Canada |||||||
2021 federal election redistributed results :
| Party | Vote | % |
| Liberal | 20,107 | 48.23 |
| Conservative | 17,690 | 42.43 |
| New Democratic | 2,731 | 6.55 |
| Green | 1,162 | 2.79 |
vte2019 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Conservative | Bob Saroya | 26,133 | 48.94 | -0.43 | $105,729.16 |
| | Liberal | Alan Ho | 20,484 | 38.36 | -4.97 | $111,317.79 |
| | New Democratic | Gregory Hines | 3,524 | 6.60 | +1.53 | none listed |
| | Green | Elvin Kao | 2,394 | 4.48 | +2.25 | $5,836.95 |
| | People's | Sarah Chung | 861 | 1.61 | – | none listed |
| Total valid votes/expense limit | Total valid votes/expense limit | Total valid votes/expense limit | 53,396 | 100.0 | – |
| Total rejected ballots | Total rejected ballots | Total rejected ballots | 523 | 0.97 | – |
| Turnout | Turnout | Turnout | 53,919 | 60.90 | +0.22 |
| Eligible voters | Eligible voters | Eligible voters | 88,538 |
| | Conservative hold | Conservative hold | Swing | Swing | +2.27 |
| Source: Elections Canada |||||||
2015 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Conservative | Bob Saroya | 24,605 | 49.37 | +3.54 | $148,191.54 |
| | Liberal | Bang-Gu Jiang | 21,596 | 43.33 | +9.64 | $105,134.99 |
| | New Democratic | Colleen Zimmerman | 2,528 | 5.07 | -11.45 | $3,111.82 |
| | Green | Elvin Kao | 1,110 | 2.23 | -0.77 | $4,322.49 |
| Total valid votes/Expense limit | Total valid votes/Expense limit | Total valid votes/Expense limit | 49,839 | 100.00 | – | $218,774.36 |
| Total rejected ballots | Total rejected ballots | Total rejected ballots | 246 | 0.49 | – |
| Turnout | Turnout | Turnout | 50,085 | 60.68 |
| Eligible voters | Eligible voters | Eligible voters | 82,534 |
| | Conservative notional hold | Conservative notional hold | Swing | Swing | -6.10 |
| Source: Elections Canada |||||||
2011 federal election redistributed results :
| Party | Party | Vote | % |
| | Conservative | 18,025 | 45.83 |
| | Liberal | 13,250 | 33.69 |
| | New Democratic | 6,500 | 16.53 |
| | Green | 1,179 | 3.00 |
| | Others | 376 | 0.96 |
| Total | Total | 39,330 | 100.0 |

### 2004-2011

2011 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Liberal | John McCallum | 19,429 | 38.9 | -16.0 | $73,376.21 |
| | Conservative | Bob Saroya | 17,734 | 35.5 | +5.3 | $87,364.37 |
| | New Democratic | Nadine Hawkins | 10,897 | 21.8 | +11.6 | $456.44 |
| | Green | Adam Poon | 1,597 | 3.2 | -1.0 | $10,810.65 |
| | Libertarian | Allen Small | 231 | 0.5 | – | $1,384.33 |
| Total valid votes/Expense Limit | Total valid votes/Expense Limit | Total valid votes/Expense Limit | 49,888 | 100.0 | – | $95,073.73 |
| Total rejected ballots | Total rejected ballots | Total rejected ballots | 290 | 0.6 | – |
| Turnout | Turnout | Turnout | 50,178 | 55.1 | +2.8 |
| Eligible voters | Eligible voters | Eligible voters | 91,057 | – | – |
2008 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Liberal | John McCallum | 25,195 | 54.9 | -6.7 | $58,875 |
| | Conservative | Duncan Fletcher | 13,855 | 30.2 | +3.2 | $58,523 |
| | New Democratic | Nadine Hawkins | 4,682 | 10.2 | +2.2 | $4,250 |
| | Green | Leonard Aitken | 1,931 | 4.2 | +2.0 | $2,524 |
| | Libertarian | Allen Small | 229 | 0.5 | N/A | $348 |
| Total valid votes/Expense limit | Total valid votes/Expense limit | Total valid votes/Expense limit | 45,892 | 100.0 | – | $90,944.51 |
| Turnout | Turnout | Turnout | – | 52.31 |
2006 Canadian federal election :
| Party | Candidate | Votes | % | ±% |
| | Liberal | John McCallum | 32,797 | 61.6 | -4.7 |
| | Conservative | Joe Li | 14,357 | 27.0 | +4.5 |
| | New Democratic | Janice Hagan | 4,266 | 8.0 | -0.7 |
| | Green | Wesley Weese | 1,151 | 2.2 | -0.3 |
| | Progressive Canadian | Fayaz Choudhary | 363 | 0.7 | |
| | Independent | Partap Dua | 297 | 0.6 | |
| Total valid votes | Total valid votes | Total valid votes | 53,231 | 100.0 |
2004 Canadian federal election :
| Party | Candidate | Votes | % |
| | Liberal | John McCallum | 30,442 | 66.3 |
| | Conservative | Joe Li | 10,325 | 22.5 |
| | New Democratic | Janice Hagan | 3,993 | 8.7 |
| | Green | Ed Wong | 1,148 | 2.5 |
| Total valid votes | Total valid votes | Total valid votes | 45,908 | 100.0 |