The Political Record · Federal electoral districts
Aurora—Oak Ridges—Richmond Hill
Federal riding · ON · No. 35003 · 2023 representation order
- Member
- Costas Menegakis Conservative
- 2025 result
- Conservative gain by 7,433 votes
- Turnout
- 69.5% of 90,016 electors
- Population
- 117,750 2021 census
- Area
- 102 km²
- Figures as of
- 2026-09-25
Distinctions · ranked against all 343 ridings
- Changed hands in 2025One of 58 of 343 ridings where the winning party changed from the transposed 2021 result (21 of 122 in Ontario)
- Population, largest first117,750 people, 2021 census · 89th of 343 in Canada
- Area, smallest first102 km² · 130th of 343 in Canada
In brief
Illustration after: © House of Commons
Member of Parliament
Costas Menegakis
- Member: Citizenship and Immigration
IDid this riding change?
Yes. 6% of today's Aurora—Oak Ridges—Richmond Hill came from ridings other than the old Aurora—Oak Ridges—Richmond Hill.
Share of today's areaFormer riding
94.2%Aurora—Oak Ridges—Richmond Hill 95% of it kept
5.8%Newmarket—Aurora 9% of it kept
How this is measured. Share of the current riding's area that came from each former riding, by intersecting the 2013 and 2023 boundary files. It is area, not population. Elections Canada counts 48 of 343 ridings as entirely unchanged.
IIThe 2025 result
Conservative gain
Elected
Costas Menegakis
Conservative
34,023
54.7% of valid votes
Margin
7,433
votes · +11.9 pts
Runner-up
Leah Taylor Roy
Liberal
26,590
42.8% of valid votes
Conservative 54.7% · Liberal 42.8% · New Democratic 1.3%
Turnout69.5% of 90,016 electors
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Costas Menegakis | Conservative | 34,023 | 54.7% | 41.7% | +13.0 |
| Leah Taylor Roy | Liberal | 26,590 | 42.8% | 44.3% | −1.5 |
| Danielle Maniuk | New Democratic | 835 | 1.3% | 8.0% | −6.7 |
2 further candidates, each under 1% of the vote
| Tom Muench | Green | 465 | 0.7% |
| Igor Tvorogov | People's | 256 | 0.4% |
The 2021 column is Elections Canada's official transposition of the 2021 result onto these 2023 boundaries. ± is the change in each party's share. It is not "swing": with four or more competitive parties there is no single pair to swing between.
IIIHow close was it, really
Swing needed to flip
6.0 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
835 votes
New Democratic took fewer than the 7,433-vote margin.
Election-day polls won by others
21 of 188
2 polls ended in an exact tie.
Flip the seatHypothetical
It would have taken 3,717 voters switching from Conservative to Liberal — 6.0% of the 62,169 valid votes, 6.0 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
Conservative34,023
Liberal26,590
Still Conservative by 7,433 votes. Actual margin: 7,433.
IVElection day versus advance
Only 51.7% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
Election dayAdvance & specialGap
Conservative56.4%52.9%−3.5
Liberal40.5%45.2%+4.7
New Democratic1.7%1.0%−0.7
An association, not a cause. Voters who cast ballots before election day differed from those who turned out on the day. It does not say why. There is no poll-level turnout figure on this page: the elector count on a polling division includes people who voted in advance and were counted elsewhere.
VWhat kind of place this is
- Median total household income is $122,000 — about 1.5 times the median riding's $84,000.highestlowest15th highest of 343
- Median age is 42.8 — about the same as the median riding's 41.6.highestlowest132nd highest of 343
- Share aged 25-64 with a bachelor's degree or higher is 54.6% — about 1.9 times the median riding's 28.2%.highestlowest31st highest of 343
- Share who are immigrants is 49.0% — about 2.8 times the median riding's 17.3%.highestlowest34th highest of 343
- Share of households that own their home is 83.9% — about 1.2 times the median riding's 71.4%.highestlowest24th highest of 343
- Share with French as a mother tongue is 0.7% — about 44 percent of the median riding's 1.6%.highestlowest48th lowest of 343
2021 Census, keyed to the 2023 representation order. Comparisons are against the median riding, not Canada as a whole. Each rule places this riding among all 343.
VIWhere it is
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The card
No. 35003ON · 2025
Aurora—Oak Ridges—Richmond Hill
Costas Menegakis
- Result
- Conservative gain by 7,433
- Turnout
- 69.5%
- Population
- 117,750
- Area
- 102 km²
Changed hands in 2025Population, largest firstArea, smallest first
One of 343The Political Record
A card exists for every one of the 343 ridings.
Every figure on it is the figure on this page: the 2025 result and margin, turnout, the 2021 census population, the area, and the distinctions ranked against all 343 ridings. The portrait is an illustration after the official House of Commons photograph.
Open a neighbour to collect the next one.