The Political Record · Federal electoral districts

Chatham-Kent—Leamington

Federal riding · ON · No. 35021 · 2023 representation order
Fig. 1 — Chatham-Kent—Leamington, 2023 boundaries.
Member
Dave Epp Conservative
2025 result
Conservative hold by 15,634 votes
Turnout
67.9% of 107,156 electors
Population
134,225 2021 census
Area
4,158 km²
Figures as of
2026-09-25
Distinctions · ranked against all 343 ridings
  • Most populous in Canada: 134,225 people, 2021 census · 2nd of 3432nd
    Most populous in Canada
    134,225 people, 2021 census · 2nd of 343
  • Area, largest first: 4,158 km² · 99th of 343 in Canada99th
    Area, largest first
    4,158 km² · 99th of 343 in Canada
  • Width of the margin: Won by 21.6 points (15,634 votes) · 126th of 343 in Canada126th
    Width of the margin
    Won by 21.6 points (15,634 votes) · 126th of 343 in Canada
In brief
  1. Dave Epp held the seat for the Conservatives by 15,634 votes (+21.6 points).
  2. 27% of today's riding was drawn from other ridings in 2023.
  3. Election-day and advance voters agreed on the winner; 62.6% of votes were cast on the day.
  4. Share aged 25-64 with a bachelor's degree or higher is the 25th lowest of 343 ridings.
Illustration after: © House of Commons
Member of Parliament
Dave Epp
Conservative · first elected 2019-10-21 · 3 terms
  • Member: Agriculture and Agri-Food
90 speeches in the 45th Parliament, most often on Business of Supply — Opposition Motion—GC Strategies Inc. — Main Estimates and Supplementary Estimates (A), 2025-26.

IDid this riding change?

Yes. 27% of today's Chatham-Kent—Leamington came from ridings other than the old Chatham-Kent—Leamington.

Share of today's areaFormer riding
73.1%Chatham-Kent—Leamington 91% of it kept
26.5%Lambton—Kent—Middlesex 18% 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 hold
Elected
Dave Epp
Conservative
41,612
57.5% of valid votes
Margin
15,634
votes · +21.6 pts
Runner-up
Keith Pickard
Liberal
25,978
35.9% of valid votes
Conservative 57.5% · Liberal 35.9% · New Democratic 4.1% · People's 1.5% · Green 1.0%
Turnout67.9% of 107,156 electors
CandidatePartyVotes%2021±
Dave EppConservative41,61257.5%42.1%+15.4
Keith PickardLiberal25,97835.9%26.5%+9.4
Seamus McInnis FlemingNew Democratic2,9434.1%14.5%−10.4
Trevor LeePeople's1,0611.5%14.6%−13.1
James PlunkettGreen7571.0%1.5%−0.5
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
10.8 pts
Half the margin: the share that would have had to move from first to second.
Third place vs. the margin
2,943 votes
New Democratic took fewer than the 15,634-vote margin.
Election-day polls won by others
14 of 257
No poll ended in a tie.
Fig. 2 — Each square is one election-day poll: ■ won by the Conservatives (243) · ■ won by another party (14).
Flip the seatHypothetical

It would have taken 7,818 voters switching from Conservative to Liberal — 10.8% of the 72,351 valid votes, 10.8 points — to change the result. No ballot was cast this way; this only moves votes between the top two.

Conservative41,612
Liberal25,978
Still Conservative by 15,634 votes. Actual margin: 15,634.

IVElection day versus advance

Only 62.6% of this riding's votes were cast at election-day polls. The rest were advance or special ballots.

Election dayAdvance & specialGap
Conservative60.3%52.8%−7.5
Liberal32.5%41.7%+9.2
New Democratic4.4%3.5%−0.9
People's1.6%1.2%−0.4
Green1.2%0.8%−0.4
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

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…
Fig. 3 — Chatham-Kent—Leamington and its 4 neighbouring ridings.

The card

No. 35021ON · 2025
Chatham-Kent—Leamington
Dave Epp
Result
Conservative hold by 15,634
Turnout
67.9%
Population
134,225
Area
4,158 km²
Most populous in Canada: 134,225 people, 2021 census · 2nd of 3432ndMost populous in CanadaArea, largest first: 4,158 km² · 99th of 343 in Canada99thArea, largest firstWidth of the margin: Won by 21.6 points (15,634 votes) · 126th of 343 in Canada126thWidth of the margin
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.