The Political Record · Federal electoral districts
Kingston and the Islands
Kingston et les Îles
Federal riding · ON · No. 35046 · 2023 representation order
- Member
- Mark Gerretsen Liberal
- 2025 result
- Liberal hold by 25,090 votes
- Turnout
- 71.7% of 108,014 electors
- Population
- 134,415 2021 census
- Area
- 981 km²
- Figures as of
- 2026-09-25
Distinctions · ranked against all 343 ridings
- Most populous in Canada134,415 people, 2021 census · 1st of 343
- Width of the marginWon by 32.6 points (25,090 votes) · 74th of 343 in Canada
- Turnout71.7% of 108,014 electors voted · 110th of 343 in Canada
In brief
- Mark Gerretsen held the seat for the Liberals by 25,090 votes (+32.6 points).
- 31% of today's riding was drawn from other ridings in 2023.
- Election-day and advance voters agreed on the winner; 52.4% of votes were cast on the day.
- Share of households that own their home is the 71st lowest of 343 ridings.
Illustration after: © House of Commons
Member of Parliament
Mark Gerretsen
- Chief government whip
- Member of the Board of Internal Economy
IDid this riding change?
Yes. 31% of today's Kingston and the Islands came from ridings other than the old Kingston and the Islands.
Share of today's areaFormer riding
69.5%Kingston and the Islands
30.5%Lanark—Frontenac—Kingston 4% 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
Mark Gerretsen
Liberal
48,682
63.2% of valid votes
Margin
25,090
votes · +32.6 pts
Runner-up
Bryan Paterson
Conservative
23,592
30.6% of valid votes
Liberal 63.2% · Conservative 30.6% · New Democratic 4.7% · Green 1.4%
Turnout71.7% of 108,014 electors
| Candidate | Party | Votes | % | 2021 | ± |
|---|---|---|---|---|---|
| Mark Gerretsen | Liberal | 48,682 | 63.2% | 40.4% | +22.8 |
| Bryan Paterson | Conservative | 23,592 | 30.6% | 24.4% | +6.2 |
| Daria Juüdi-Hope | New Democratic | 3,648 | 4.7% | 28.6% | −23.9 |
| Fintan Hartnett | Green | 1,071 | 1.4% | 2.4% | −1.0 |
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
16.3 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
3,648 votes
New Democratic took fewer than the 25,090-vote margin.
Election-day polls won by others
19 of 249
3 polls ended in an exact tie.
Flip the seatHypothetical
It would have taken 12,546 voters switching from Liberal to Conservative — 16.3% of the 76,993 valid votes, 16.3 points — to change the result. No ballot was cast this way; this only moves votes between the top two.
Liberal48,682
Conservative23,592
Still Liberal by 25,090 votes. Actual margin: 25,090.
IVElection day versus advance
Only 52.4% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.
Election dayAdvance & specialGap
Liberal58.5%68.5%+10.0
Conservative34.2%26.7%−7.5
New Democratic5.5%3.9%−1.6
Green1.8%0.9%−0.9
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 $79,000 — a little lower than the median riding's $84,000.highestlowest136th lowest of 343
- Median age is 41.6 — about the same as the median riding's 41.6.highestlowest163rd highest of 343
- Share aged 25-64 with a bachelor's degree or higher is 36.5% — about 1.3 times the median riding's 28.2%.highestlowest121st highest of 343
- Share who are immigrants is 13.5% — about 78 percent of the median riding's 17.3%.highestlowest149th lowest of 343
- Share of households that own their home is 56.4% — about 79 percent of the median riding's 71.4%.highestlowest71st lowest of 343
- Share with French as a mother tongue is 3.1% — about 1.9 times the median riding's 1.6%.highestlowest116th 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. 35046ON · 2025
Kingston and the Islands
Mark Gerretsen
- Result
- Liberal hold by 25,090
- Turnout
- 71.7%
- Population
- 134,415
- Area
- 981 km²
Most populous in CanadaWidth of the marginTurnout
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.