# Markham—Stouffville (federal electoral district)

Markham—Stouffville is a federal electoral district in Ontario, Canada. It encompasses a portion of Ontario previously included in the electoral districts of Markham—Unionville and Oak Ridges—Markham.
Markham—Stouffville was created by the 2012 federal electoral boundaries redistribution and was legally defined in the 2013 representation order. It came into effect upon the dropping of the writs for the 2015 federal election. Helena Jaczek has represented the riding since the 2019 federal election.

## Geography

The territory of the riding (map) consists of part of the Regional Municipality of York: (a) the Town of Whitchurch-Stouffville; and (b) the part of the City of Markham lying easterly of a line described as follows: commencing at the intersection of the northerly limit of Markham with Highway 48; then southerly along Highway 48 to 16th Avenue; then westerly to McCowan Road; then southerly to Highway 407; then easterly along Highway 407 to the Rouge River; then generally southeasterly along Rouge River to the southerly limit of Markham. The riding's population is estimated at 109,780.

## Demographics

According to the 2021 Canadian census
Ethnic groups: 36.0% White, 27.7% Chinese, 19.0% South Asian, 3.7% Black, 3.6% Filipino, 1.1% Arab, 1.1% West Asian
Languages: 51.2% English, 12.7% Cantonese, 7.1% Mandarin, 4.9% Tamil, 1.6% Italian, 1.6% Urdu, 1.4% Tagalog, 1.0% Gujarati
Religions: 47.0% Christian (22.3% Catholic, 4.3% Christian Orthodox, 2.6% Anglican, 2.2% United Church, 1.3% Baptist, 1.1% Presbyterian, 13.2% Other), 10.2% Hindu, 6.9% Muslim, 2.4% Buddhist, 1.0% Sikh, 31.5% None
Median income: $43,200 (2020)
Average income: $59,800 (2020)

## Members of Parliament

This riding has elected the following members of Parliament:
| Parliament | Years | Member | Party |
| Markham—Stouffville Riding created from Markham—Unionville and Oak Ridges—Markham |||||
| 42nd | 2015–2019 | Jane Philpott | Liberal |
| 42nd | 2019–2019 | Jane Philpott | Independent |
| 43rd | 2019–2021 | Helena Jaczek | Liberal |
| 44th | 2021–present | Helena Jaczek | Liberal |

## Election results

2025 Canadian federal election :
| Party | Candidate | Votes |
| | Liberal | Helena Jaczek |
| | Conservative | Niran Jeyanesan |
| | People's | René de Vries |
| Total valid votes/Expense limit | Total valid votes/Expense limit | Total valid votes/Expense limit |
| Total rejected ballots | Total rejected ballots | Total rejected ballots |
| Turnout | Turnout | Turnout |
| Eligible voters | Eligible voters | Eligible voters |
vte2021 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Liberal | Helena Jaczek | 29,773 | 50.99 | +12.11 | $102,548.63 |
| | Conservative | Ben Smith | 20,740 | 35.52 | +4.78 | $105,317.55 |
| | New Democratic | Muhammad Ahsin Sahi | 4,961 | 8.50 | +2.19 | $2,935.24 |
| | People's | René De Vries | 1,869 | 3.20 | +2.37 | $4,030.60 |
| | Green | Uzair Baig | 1,049 | 1.80 | -0.69 | $3,158.35 |
| Total valid votes/Expense limit | Total valid votes/Expense limit | Total valid votes/Expense limit | 58,392 | – | – | $124,038.54 |
| Total rejected ballots | Total rejected ballots | Total rejected ballots | 459 |
| Turnout | Turnout | Turnout | 58,851 | 60.78 | -7.78 |
| Eligible voters | Eligible voters | Eligible voters | 96,829 |
| | Liberal hold | Liberal hold | Swing | Swing | +3.67 |
| Source: Elections Canada |||||||
2021 federal election redistributed results :
| Party | Vote | % |
| Liberal | 25,391 | 51.55 |
| Conservative | 17,118 | 34.75 |
| New Democratic | 4,329 | 8.79 |
| People's | 1,448 | 2.94 |
| Green | 972 | 1.97 |
vte2019 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Liberal | Helena Jaczek | 24,743 | 38.88 | -10.33 | $101,615.44 |
| | Conservative | Theodore Antony | 19,570 | 30.74 | -12.03 | $80,408.76 |
| | Independent | Jane Philpott | 13,216 | 20.76 | | $101,260.04 |
| | New Democratic | Hal Berman | 4,013 | 6.30 | +0.2 | none listed |
| | Green | Roy Long | 1,581 | 2.48 | +0.56 | $5,982.06 |
| | People's | Jeremy Lin | 531 | 0.83 | | $1,962.39 |
| Total valid votes/expense limit | Total valid votes/expense limit | Total valid votes/expense limit | 63,654 | 100.0 |
| Total rejected ballots | Total rejected ballots | Total rejected ballots | |
| Turnout | Turnout | Turnout | |
| Eligible voters | Eligible voters | Eligible voters | |
| | Liberal hold | Liberal hold | Swing | Swing | +0.85 |
| Sources: CBC News, Elections Canada |||||||
2015 Canadian federal election :
| Party | Candidate | Votes | % | ±% | Expenditures |
| | Liberal | Jane Philpott | 29,416 | 49.21 | +20.26 | $112,011.35 |
| | Conservative | Paul Calandra | 25,565 | 42.77 | -7.72 | $164,609.85 |
| | New Democratic | Gregory Hines | 3,647 | 6.10 | -10.88 | $7,176.28 |
| | Green | Myles O'Brien | 1,145 | 1.92 | -0.81 | $1,395.62 |
| Total valid votes/Expense limit | Total valid votes/Expense limit | Total valid votes/Expense limit | 59,773 | 100.00 | | $225,802.37 |
| Total rejected ballots | Total rejected ballots | Total rejected ballots | 189 | 0.32 |
| Turnout | Turnout | Turnout | 59,962 | 68.56 |
| Eligible voters | Eligible voters | Eligible voters | 87,460 |
| | Liberal notional gain from Conservative | Liberal notional gain from Conservative | Swing | Swing | +13.99 |
| Source: Elections Canada |||||||
2011 federal election redistributed results :
| Party | Party | Vote | % |
| | Conservative | 23,820 | 50.49 |
| | Liberal | 13,662 | 28.96 |
| | New Democratic | 8,010 | 16.98 |
| | Green | 1,284 | 2.72 |
| | Others | 406 | 0.86 |
| Total | Total | 47,182 | 100.00 |