The Political RecordFederal electoral districtsNo. 35058Ontario
Markham— Unionville
Markham—
Who represents Markham— Unionville
Michael Ma
Member of Parliament for Markham—
Liberal since · elected in 2025 as a Conservative
MP since · first term
- Industry and Technology committee
- Public Accounts committee
80 speeches in the 45th Parliament, most often on Business of Supply — Main Estimates, 2025-26.
The 2025 result: Conservative gain from the Liberals
Share of the valid votes by candidate, Markham—Unionville, April 28, 2025
The figures
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Michael Ma | Conservative | 27,055 | 50.7% |
| Peter Yuen | Liberal | 25,133 | 47.1% |
| Sameer Qureshi | New Democratic | 723 | 1.4% |
| Other (1) | 503 | 0.9% |
Michael Ma (Conservative) won Markham—
Of the 53,414 valid votes, Michael Ma (Conservative) took 50.7%, Peter Yuen (Liberal) 47.1% and Sameer Qureshi (New Democratic) 1.4%; one other candidate took 0.9%. Turnout was 63.9% of 84,154 electors: 53,733 ballots cast, 53,414 of them valid, for 4 candidates.
Against the 2021 result on these boundaries, the Conservatives are up 8.7 (42.0% to 50.7%), the Liberals down 0.6 (47.7% to 47.1%) and the New Democrats down 5.1 (6.5% to 1.4%), in points of the valid votes.
2021 is Elections Canada's transposition of that election onto the 2023 boundaries, not an election held on these lines.
Since 2004: no party has held it
The party first in Markham—Unionville at each general election, 2004 to 2025, on today's boundaries
- 2004Liberal58.6%by 30.3 points over the Conservatives
- 2006Liberal54.0%by 21.1 points over the Conservatives
- 2008Liberal47.9%by 11.3 points over the Conservatives
- 2011changed handsConservative43.8%by 10.5 points over the Liberals
- 2015Conservative49.4%by 6.1 points over the Liberals
- 2019Conservative48.9%by 10.5 points over the Liberals
- 2021changed handsLiberal47.7%by 5.7 points over the Conservatives
- 2025changed handsConservative50.7%by 3.6 points over the Liberals
The figures
| Year | First | Share | Second | Margin (pts) | Basis |
|---|---|---|---|---|---|
| 2004 | Liberal | 58.6% | Conservative | 30.3 | carried, our estimate |
| 2006 | Liberal | 54.0% | Conservative | 21.1 | carried, our estimate |
| 2008 | Liberal | 47.9% | Conservative | 11.3 | carried, our estimate |
| 2011 | Conservative | 43.8% | Liberal | 10.5 | carried, our estimate |
| 2015 | Conservative | 49.4% | Liberal | 6.1 | carried, our estimate |
| 2019 | Conservative | 48.9% | Liberal | 10.5 | carried, our estimate |
| 2021 | Liberal | 47.7% | Conservative | 5.7 | transposed by Elections Canada |
| 2025 | Conservative | 50.7% | Liberal | 3.6 | official result |
The Liberals were first at four of the eight general elections from 2004 to 2025, the Conservatives at four; it changed hands three times. In 2025 the Conservatives took 50.7% of the vote here, 10.4 points above their average of 40.3% at the seven general elections from 2004 to 2021.
On today's boundaries the Liberals were first here in 2004 (58.6%), 2006 (54.0%), 2008 (47.9%) and 2021 (47.7%) and the Conservatives in 2011 (43.8%), 2015 (49.4%), 2019 (48.9%) and 2025 (50.7%), each with the share of the valid votes shown.
A stronghold is a party first at every general election since 2004, by an average of 20 points or more over the next party; held, first at every one; usually, first at all but one. By-elections are not counted. By this rule 160 of the 343 ridings have no degree. The results before 2021 are carried onto today's boundaries by where the riding's 2025 electors lived: our estimate, from the older boundaries of Taylor, Lucas, Kirby and Hewitt and the results in Sevi's "Who Runs?". 2021 is Elections Canada's transposition, and 2025 the official result.
- 2021 Liberal · Paul Chiang, by 2,999 votes (6.7 pts)
- 2019 Conservative · Bob Saroya, by 5,649 votes (10.5 pts)
- 2015 Conservative · Bob Saroya, by 3,009 votes (6.1 pts)
In the old Markham—Unionville on the 2013 boundaries, the riding most of the 2025 electors in today's Markham—Unionville lived in; Elections Canada's official results.
What kind of place Markham— Unionville is
- Population
- 116,9702021 census
- Area
- 86km²
- Density
- 1,355people per km²
- Electors
- 84,154on the 2025 lists
- 3rd-smallest Indigenous share0.1% report an Indigenous identity, 3rd lowest of 343 (Share with an Indigenous identity, 2021 census)
- 5th-largest immigrant share61.1% are immigrants, 5th highest of 343 (Share who are immigrants, 2021 census)
- Changed hands in 2025One of 58 of 343 ridings where the winning party changed from the transposed 2021 result (21 of 122 in Ontario)
- Share who are immigrants is 61.1% — about 3.5 times the median riding's 17.3%.highestlowest5th highest of 343
- Share with French as a mother tongue is 0.5% — about 31 percent of the median riding's 1.6%.highestlowest20th lowest of 343
- Share aged 25-64 with a bachelor's degree or higher is 55.3% — about 2.0 times the median riding's 28.2%.highestlowest29th highest of 343
- Share of households that own their home is 81.7% — a little higher than the median riding's 71.4%.highestlowest44th highest of 343
- Median total household income is $103,000 — about 1.2 times the median riding's $84,000.highestlowest55th highest of 343
- Median age is 42.4 — about the same as the median riding's 41.6.highestlowest143rd highest of 343
2021 Census on the 2023 boundaries; each rule places this riding among all 343. Density is the census population over the riding's area.
IDid this riding change?
Yes — it shrank. All of today's Markham—Unionville, its electors as well as its ground, comes from the old Markham—Unionville, but it is only 97% of that riding by area. The rest went elsewhere.
IIThe 2025 result
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Michael Ma | Conservative | 27,055 | 50.7% | 42.0% | +8.7 |
| Peter Yuen | Liberal | 25,133 | 47.1% | 47.7% | −0.6 |
| Sameer Qureshi | New Democratic | 723 | 1.4% | 6.5% | −5.1 |
1 further candidate, under 1% of the vote
| Elvin Kao | Green | 503 | 0.9% |
IIIHow close was it, really
It would have taken 962 voters switching from Conservative to Liberal — 1.8% of the 53,414 valid votes, 1.8 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
IVElection day versus advance
Only 62.7% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
On election day the Liberals took 44.8%, the Conservatives 52.7%, the New Democrats 1.4% and the Greens 1.1%; in advance and special ballots, 50.9%, 47.2%, 1.2% and 0.7%, in that order.
Share of the valid votes by party, election-day polls against advance and special ballots, Markham—Unionville, April 28, 2025
The figures
| Party | Election day | Advance and special | Gap |
|---|---|---|---|
| Liberal | 44.8% | 50.9% | +6.1 |
| Conservative | 52.7% | 47.2% | −5.5 |
| New Democratic | 1.4% | 1.2% | −0.2 |
| Green | 1.1% | 0.7% | −0.4 |