The Political Record · Federal electoral districts
Sudbury
Federal riding · ON · No. 35103 · 2023 representation order
- Member
- Viviane Lapointe Liberal
- 2025 result
- Liberal hold by 7,716 votes
- Turnout
- 69.0% of 88,956 electors
- Population
- 114,380 2021 census
- Area
- 998 km²
- Figures as of
- 2026-09-25
Distinctions · ranked against all 343 ridings
- Area, largest first998 km² · 143rd of 343 in Canada
- Population, largest first114,380 people, 2021 census · 145th of 343 in Canada
- Turnout, lowest first69.0% of 88,956 electors voted · 152nd of 343 in Canada
In brief
- Viviane Lapointe held the seat for the Liberals by 7,716 votes (+12.7 points).
- 30% of today's riding was drawn from other ridings in 2023.
- Election-day and advance voters agreed on the winner; 58.1% of votes were cast on the day.
- Share of households that own their home is the 78th lowest of 343 ridings.
Illustration after: © House of Commons
Member of Parliament
Viviane Lapointe
- Member: National Defence
IDid this riding change?
Yes. 30% of today's Sudbury came from ridings other than the old Nickel Belt.
Share of today's areaFormer riding
70.3%Nickel Belt 2% of it kept
29.7%Sudbury 30% 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
Liberal hold
Elected
Viviane Lapointe
Liberal
31,551
51.9% of valid votes
Margin
7,716
votes · +12.7 pts
Runner-up
Ian Symington
Conservative
23,835
39.2% of valid votes
Liberal 51.9% · Conservative 39.2% · New Democratic 7.7% · People's 1.3%
Turnout69.0% of 88,956 electors
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Viviane Lapointe | Liberal | 31,551 | 51.9% | 34.8% | +17.1 |
| Ian Symington | Conservative | 23,835 | 39.2% | 27.6% | +11.6 |
| Nadia Verrelli | New Democratic | 4,680 | 7.7% | 28.7% | −21.0 |
| Nicholas Bonderoff | People's | 773 | 1.3% | 6.1% | −4.8 |
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
6.3 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
4,680 votes
New Democratic took fewer than the 7,716-vote margin.
Election-day polls won by others
73 of 214
3 polls ended in an exact tie.
Flip the seatHypothetical
It would have taken 3,859 voters switching from Liberal to Conservative — 6.3% of the 60,839 valid votes, 6.3 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
Liberal31,551
Conservative23,835
Still Liberal by 7,716 votes. Actual margin: 7,716.
IVElection day versus advance
Only 58.1% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
Election dayAdvance & specialGap
Liberal48.0%57.2%+9.2
Conservative41.6%35.9%−5.7
New Democratic8.9%6.0%−2.9
People's1.5%0.9%−0.6
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 $78,500 — a little lower than the median riding's $84,000.highestlowest128th lowest 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 27.2% — a little lower than the median riding's 28.2%.highestlowest165th lowest of 343
- Share who are immigrants is 7.8% — about 45 percent of the median riding's 17.3%.highestlowest94th lowest of 343
- Share of households that own their home is 57.8% — about 81 percent of the median riding's 71.4%.highestlowest78th lowest of 343
- Share with French as a mother tongue is 16.9% — about 10.6 times the median riding's 1.6%.highestlowest90th highest 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
loading basemap…
The card
No. 35103ON · 2025
Sudbury
Viviane Lapointe
- Result
- Liberal hold by 7,716
- Turnout
- 69.0%
- Population
- 114,380
- Area
- 998 km²
Area, largest firstPopulation, largest firstTurnout, lowest 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.