The Political RecordFederal electoral districtsNo. 35103Ontario

Sudbury

Sudbury is a federal riding in Ontario. Viviane Lapointe (Liberal, first elected to the House in 2021) represents Sudbury. Viviane Lapointe (Liberal) held Sudbury for the Liberals in the 2025 election by 7,716 votes (12.7 points), with 51.9% of the vote. Ian Symington (Conservative) was second with 39.2%, on a turnout of 69.0% of 88,956 electors. Member as of 2026-11-01.

Fig. 1 — Sudbury on the board, 2023 boundaries; the ridings next door as the House holds them on 2026-11-01. Open it on the board →

Who represents Sudbury

Viviane Lapointe's piece from the board. Illustration after the official portrait © House of Commons.

Viviane Lapointe

Member of Parliament for Sudbury

Liberal

MP since 2021-09-20 · 2 terms

National Defence committee

35 speeches in the 45th Parliament, most often on Canada's Auto Industry.

Contact and office · House of Commons →

The 2025 result: Liberal hold

Share of the valid votes by candidate, Sudbury, April 28, 2025

Shares of the 60,839 valid votes; a candidate under 1% is counted with the others. Source: Elections Canada, official voting results, the 2025 general election.

The figures

Candidate	Party	Votes	Share
Viviane Lapointe	Liberal	31,551	51.9%
Ian Symington	Conservative	23,835	39.2%
Nadia Verrelli	New Democratic	4,680	7.7%
Nicholas Bonderoff	People's Party	773	1.3%

Viviane Lapointe (Liberal) won Sudbury on April 28, 2025 with 31,551 votes, 51.9% of the 60,839 valid votes. Ian Symington (Conservative) was second with 23,835 (39.2%), 7,716 votes and 12.7 points behind.

Of the 60,839 valid votes, Viviane Lapointe (Liberal) took 51.9%, Ian Symington (Conservative) 39.2%, Nadia Verrelli (New Democratic) 7.7% and Nicholas Bonderoff (People's Party) 1.3%. Turnout was 69.0% of 88,956 electors: 61,361 ballots cast, 60,839 of them valid, for 4 candidates.

Since 2021

Against the 2021 result on these boundaries, the Liberals are up 17.1 (34.8% to 51.9%), the Conservatives up 11.6 (27.6% to 39.2%), the New Democrats down 21.0 (28.7% to 7.7%) and the People's Party down 4.8 (6.1% to 1.3%), 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 Sudbury at each general election, 2004 to 2025, on today's boundaries

2004Liberal43.8%by 13.0 points over the New Democrats
2006Liberal41.9%by 8.6 points over the New Democrats
2008changed handsNew Democratic37.6%by 8.2 points over the Liberals
2011New Democratic51.0%by 22.7 points over the Conservatives
2015changed handsLiberal46.4%by 16.5 points over the New Democrats
2019Liberal40.5%by 10.9 points over the New Democrats
2021Liberal34.8%by 6.0 points over the New Democrats
2025Liberal51.9%by 12.7 points over the Conservatives

Each election carried onto today's boundaries by where the riding's 2025 electors lived: our estimate to 2019, Elections Canada's transposition for 2021, the official result for 2025. Parties are counted as they ran.

The figures

Year	First	Share	Second	Margin (pts)	Basis
2004	Liberal	43.8%	New Democratic	13.0	carried, our estimate
2006	Liberal	41.9%	New Democratic	8.6	carried, our estimate
2008	New Democratic	37.6%	Liberal	8.2	carried, our estimate
2011	New Democratic	51.0%	Conservative	22.7	carried, our estimate
2015	Liberal	46.4%	New Democratic	16.5	carried, our estimate
2019	Liberal	40.5%	New Democratic	10.9	carried, our estimate
2021	Liberal	34.8%	New Democratic	6.0	transposed by Elections Canada
2025	Liberal	51.9%	Conservative	12.7	official result

The Liberals were first at six of the eight general elections from 2004 to 2025, the NDP at two; it changed hands twice. In 2025 the Liberals took 51.9% of the vote here, 15.6 points above their average of 36.3% at the seven general elections from 2004 to 2021.

On today's boundaries the Liberals were first here in 2004 (43.8%), 2006 (41.9%), 2015 (46.4%), 2019 (40.5%), 2021 (34.8%) and 2025 (51.9%) and the NDP in 2008 (37.6%) and 2011 (51.0%), 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.

Before 2025

2021 Liberal · Viviane Lapointe, by 2,302 votes (5.0 pts)
2019 Liberal · Paul Lefebvre, by 5,758 votes (12.0 pts)
2015 Liberal · Paul Lefebvre, by 9,741 votes (19.6 pts)

In the old Sudbury on the 2013 boundaries, the riding most of the 2025 electors in today's Sudbury lived in; Elections Canada's official results.

What kind of place Sudbury is

Population: 114,3802021 census
Area: 998km²
Density: 115people per km²
Electors: 88,956on the 2025 lists

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
Share who are immigrants is 7.8% — about 45 percent of the median riding's 17.3%.
highestlowest94th lowest of 343
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

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. 79% of the 2025 electors in today's Sudbury lived in the old Sudbury; by area, 70% of the riding came from the old Nickel Belt.

Share of today's electorsFormer riding

78.8%Sudbury 29.7% of the area · 30% of it kept

21.2%Nickel Belt 70.3% of the area · 2% of it kept

How this is measured. Electors: the share of the current riding's 2025 ordinary-list electors who lived in each former riding, each 2025 polling division placed in the 2013 riding a point inside it falls in. Area: the share of the current riding's area that came from each former riding, by intersecting the 2013 and 2023 boundary files, and how much of the former riding that part was. Area is land, not population. Elections Canada counts 48 of 343 ridings as entirely unchanged.

IIThe 2025 result

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

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.

Fig. 2 — Each square is one election-day poll: ■ won by the Liberals (138) · ■ won by another party (73) · ▨ tied (3).

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.

Voters who switch: 007,718

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.

On election day the Liberals took 48.0%, the Conservatives 41.6%, the New Democrats 8.9% and the People's Party 1.5%; in advance and special ballots, 57.2%, 35.9%, 6.0% and 0.9%, in that order.

Share of the valid votes by party, election-day polls against advance and special ballots, Sudbury, April 28, 2025

Shares of the valid votes cast at election-day polls, and of those cast at advance polls, at mobile polls and by special ballot; the gap is the second less the first, in points. Source: Elections Canada, poll-by-poll results, the 2025 general election.

The figures

Party	Election day	Advance and special	Gap
Liberal	48.0%	57.2%	+9.2
Conservative	41.6%	35.9%	−5.7
New Democratic	8.9%	6.0%	−2.9
People's Party	1.5%	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.

VWhere it is

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Fig. 3 — Sudbury and its 1 neighbouring ridings.

Sources and citation

"Sudbury — federal riding profile and 2025 results."
The Political Record. https://politicalrecord.ca/riding/sudbury/
Accessed 2026-11-10.

Results and transposition: Elections Canada. Boundaries: Elections Canada / Statistics Canada, Open Government Licence – Canada. Census: Statistics Canada 2021 Census. Member: House of Commons.

Figures reconcile to the certified national total of 19,641,663 votes. The member is as the House of Commons listed them on 2026-11-01. Page built 2026-11-10.