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Recent electoral history | Markham—Stouffville


2018 2022 2025 Projection PC 52% ± 10% 48.1% 48.4% 50.6% OLP 40% ± 10% 26.0% 35.5% 41.4% NDP 4% ± 3% 20.4% 9.5% 4.6% GPO 2% ± 2% 4.0% 3.9% 2.3% NBPO 1% ± 1% 0.0% 1.5% 1.1%

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338Canada Markham—Stouffville projection

Latest update: February 18, 2026

Markham—Stouffville 43% 62% 52% ± 10% PC 30% 50% 40% ± 10% OLP 2% 7% 4% ± 3% NDP PC 2025 50.64% 338Canada Popular vote projection | February 18, 2026
Methodology note. This projection is calculated using a mostly-proportional swing model adjusted with provincial and regional polls conducted by professional pollsters. This is not a poll, but a projection based on polls. Read more on 338Canada's methodology here.
50% 100% Markham—Stouffville 97% PC 3% OLP <1% NDP Odds of winning | February 18, 2026
Methodology note. These odds of winning are those if a general election were held today. They are calculated by the 338Canada Monte Carlo-type program that runs thousands of simulated elections.


Popular vote projection | Markham—Stouffville

OLP 40% ± 10% PC 52% ± 10% NDP 4% ± 3% Popular vote projection % | Markham—Stouffville 60 55 50 45 40 35 30 25 20 15 10 5 2025-03-01 2025-05-01 2025-07-01 2025-09-01 2025-11-01 2026► 2026-01-01 2026-03-01 2026-05-01 2026-07-01 Election 2025 OLP PC NDP February 18, 2026 2025-01-27 PC 48% OLP 37% NDP 9% 2025-01-27 2025-01-29 PC 48% OLP 37% NDP 9% 2025-01-29 2025-01-31 PC 50% OLP 36% NDP 9% 2025-01-31 2025-02-02 PC 51% OLP 35% NDP 9% 2025-02-02 2025-02-03 PC 50% OLP 36% NDP 9% 2025-02-03 2025-02-04 PC 50% OLP 37% NDP 8% 2025-02-04 2025-02-05 PC 50% OLP 37% NDP 8% 2025-02-05 2025-02-06 PC 51% OLP 36% NDP 8% 2025-02-06 2025-02-07 PC 51% OLP 36% NDP 8% 2025-02-07 2025-02-08 PC 48% OLP 38% NDP 8% 2025-02-08 2025-02-09 PC 49% OLP 37% NDP 8% 2025-02-09 2025-02-10 PC 49% OLP 38% NDP 8% 2025-02-10 2025-02-11 PC 49% OLP 38% NDP 8% 2025-02-11 2025-02-12 PC 48% OLP 39% NDP 7% 2025-02-12 2025-02-13 PC 49% OLP 39% NDP 8% 2025-02-13 2025-02-14 PC 49% OLP 39% NDP 7% 2025-02-14 2025-02-15 PC 49% OLP 39% NDP 7% 2025-02-15 2025-02-16 PC 49% OLP 39% NDP 7% 2025-02-16 2025-02-17 PC 48% OLP 40% NDP 7% 2025-02-17 2025-02-18 PC 48% OLP 40% NDP 7% 2025-02-18 2025-02-19 PC 49% OLP 39% NDP 7% 2025-02-19 2025-02-20 PC 49% OLP 39% NDP 7% 2025-02-20 2025-02-21 PC 49% OLP 39% NDP 7% 2025-02-21 2025-02-22 PC 49% OLP 39% NDP 7% 2025-02-22 2025-02-23 PC 49% OLP 39% NDP 7% 2025-02-23 2025-02-24 PC 49% OLP 39% NDP 7% 2025-02-24 2025-02-25 PC 49% OLP 39% NDP 7% 2025-02-25 2025-02-26 PC 49% OLP 39% NDP 7% 2025-02-26 2025-02-27 PC 49% OLP 39% NDP 7% 2025-02-27 2025-02-28 PC 51% OLP 41% NDP 5% 2025-02-28 2025-06-07 PC 51% OLP 41% NDP 5% 2025-06-07 2025-06-27 PC 51% OLP 41% NDP 4% 2025-06-27 2025-07-27 PC 52% OLP 41% NDP 4% 2025-07-27 2025-08-31 PC 55% OLP 39% NDP 4% 2025-08-31 2025-10-21 PC 54% OLP 39% NDP 4% 2025-10-21 2025-11-23 PC 54% OLP 39% NDP 4% 2025-11-23 2025-12-20 PC 53% OLP 39% NDP 4% 2025-12-20 2026-01-25 PC 53% OLP 40% NDP 4% 2026-01-25 2026-02-18 PC 52% OLP 40% NDP 4% 2026-02-18

Odds of winning | Markham—Stouffville

OLP 3% PC 97% NDP <1% Odds of winning the most seats 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 2025-03-01 2025-05-01 2025-07-01 2025-09-01 2025-11-01 2026► 2026-01-01 2026-03-01 2026-05-01 2026-07-01 Election 2025 OLP PC NDP February 18, 2026 2025-01-27 PC 96% OLP 4% NDP <1% 2025-01-27 2025-01-29 PC 97% OLP 3% NDP <1% 2025-01-29 2025-01-31 PC 99% OLP 1% NDP <1% 2025-01-31 2025-02-02 PC 99% OLP 1% NDP <1% 2025-02-02 2025-02-03 PC 99% OLP 1% NDP <1% 2025-02-03 2025-02-04 PC 98% OLP 2% NDP <1% 2025-02-04 2025-02-05 PC 98% OLP 2% NDP <1% 2025-02-05 2025-02-06 PC 99% OLP 1% NDP <1% 2025-02-06 2025-02-07 PC 99% OLP 1% NDP <1% 2025-02-07 2025-02-08 PC 94% OLP 6% NDP <1% 2025-02-08 2025-02-09 PC 97% OLP 3% NDP <1% 2025-02-09 2025-02-10 PC 96% OLP 4% NDP <1% 2025-02-10 2025-02-11 PC 95% OLP 5% NDP <1% 2025-02-11 2025-02-12 PC 94% OLP 6% NDP <1% 2025-02-12 2025-02-13 PC 94% OLP 6% NDP <1% 2025-02-13 2025-02-14 PC 93% OLP 7% NDP <1% 2025-02-14 2025-02-15 PC 95% OLP 5% NDP <1% 2025-02-15 2025-02-16 PC 96% OLP 4% NDP <1% 2025-02-16 2025-02-17 PC 90% OLP 10% NDP <1% 2025-02-17 2025-02-18 PC 89% OLP 11% NDP <1% 2025-02-18 2025-02-19 PC 93% OLP 7% NDP <1% 2025-02-19 2025-02-20 PC 94% OLP 6% NDP <1% 2025-02-20 2025-02-21 PC 93% OLP 7% NDP <1% 2025-02-21 2025-02-22 PC 95% OLP 5% NDP <1% 2025-02-22 2025-02-23 PC 94% OLP 6% NDP <1% 2025-02-23 2025-02-24 PC 95% OLP 5% NDP <1% 2025-02-24 2025-02-25 PC 95% OLP 5% NDP <1% 2025-02-25 2025-02-26 PC 96% OLP 4% NDP <1% 2025-02-26 2025-02-27 PC 95% OLP 5% NDP <1% 2025-02-27 2025-02-28 PC 99% OLP 1% NDP <1% 2025-02-28 2025-06-07 PC 92% OLP 8% NDP <1% 2025-06-07 2025-06-27 PC 92% OLP 8% NDP <1% 2025-06-27 2025-07-27 PC 94% OLP 6% NDP <1% 2025-07-27 2025-08-31 PC 99% OLP 1% NDP <1% 2025-08-31 2025-10-21 PC 99% OLP 1% NDP <1% 2025-10-21 2025-11-23 PC 99% OLP 1% NDP <1% 2025-11-23 2025-12-20 PC 98% OLP 2% NDP <1% 2025-12-20 2026-01-25 PC 97% OLP 3% NDP <1% 2026-01-25 2026-02-18 PC 97% OLP 3% NDP <1% 2026-02-18