Polls · Ontario · Legislative Assembly

Ontario voting intention.

PC, OLP, NDP, Greens: every published provincial poll on Ontario voting intention, pollster by pollster.

Vote-Scope aggregates them and projects Queen’s Park. Below: the trend against the model estimate, then the full table.

42 polls 9 pollsters Most recent fieldwork: May 11, 2026

Polling trend vs. Vote-Scope model

Each dot is one published poll; the diamond is the Vote-Scope model estimate with its 95% interval.

PC OLP NDP GP
Pollster Field dates Sample Pop. Topline Source
Abacus Data June 15, 2026 2,182 Adults
PC 41 OLP 32 NDP 19 GP 5
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Liaison June 14, 2026 1,000 Adults
OLP 38 PC 35 NDP 22 GP 4
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Abacus Data May 17, 2026 1,017 Adults
PC 41 OLP 31 NDP 17 GP 5
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Liaison May 16, 2026 1,000 Adults
PC 37 OLP 37 NDP 20 GP 4
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Léger Leger 8–May 11 1,003 Adults
PC 39 OLP 34 NDP 17 GP 6
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Léger May 10, 2026 1,003 Adults
PC 39 OLP 34 NDP 17 GP 6
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Mainstreet Research Mainstreet Research 5–May 7 910 Adults
PC 35 OLP 31 NDP 24 GP 6
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Mainstreet Research May 6, 2026 910 Adults
PC 35 OLP 31 NDP 24 GP 6
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Campaign Research Ontario PC Party internal Apr 29 – May 1 3,000 Adults
PC 39 OLP 29 NDP 20 GP 7
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Liaison 25–Apr 26 1,000 Adults
OLP 38 PC 36 NDP 20 GP 4
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Pallas April 22, 2026 1,007 ELIGIBLE_VOTERS
PC 37 OLP 32 NDP 24 GP 6
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Abacus Data April 19, 2026 1,000 Adults
PC 37 OLP 36 NDP 17 GP 5
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Pallas The Trillium April 8, 2026 1,084 ELIGIBLE_VOTERS
PC 40 OLP 31 NDP 22 GP 6
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Abacus Data April 4, 2026 2,185 Adults
PC 39 OLP 31 NDP 21 GP 5
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Innovative Research March 29, 2026 616 Adults
PC 48 OLP 30 NDP 16 GP 5
—
Liaison March 28, 2026 1,000 Adults
PC 39 OLP 36 NDP 18 GP 5
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Ipsos March 11, 2026 801 Adults
PC 42 OLP 35 NDP 18 GP 3
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Abacus Data March 8, 2026 1,000 Adults
PC 44 OLP 32 NDP 16 GP 5
—
Liaison February 21, 2026 1,000 Adults
PC 40 OLP 36 NDP 17 GP 5
—
Abacus Data February 8, 2026 1,001 Adults
PC 44 OLP 30 NDP 16 GP 6
—
Pallas January 24, 2026 1,015 Adults
PC 43 OLP 30 NDP 18 GP 5
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Liaison January 20, 2026 1,000 Adults
PC 42 OLP 35 NDP 17 GP 3
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Abacus Data January 11, 2026 1,006 Adults
PC 48 OLP 22 NDP 19 GP 6
—
Liaison December 6, 2025 1,000 Adults
PC 44 OLP 35 NDP 16 GP 3
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Angus Reid November 28, 2025 853 Adults
PC 41 OLP 28 NDP 23 GP 4
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Pallas November 15, 2025 1,077 Adults
PC 45 OLP 28 NDP 18 GP 6
—
Abacus Data November 6, 2025 1,000 Adults
PC 51 OLP 23 NDP 19 GP 3
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Léger October 16, 2025 1,052 Adults
PC 44 OLP 32 NDP 13 GP 7
—
Liaison October 15, 2025 800 Adults
PC 47 OLP 33 NDP 15 GP 3
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Abacus Data October 12, 2025 1,000 Adults
PC 51 OLP 25 NDP 15 GP 5
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Abacus Data September 15, 2025 1,021 Adults
PC 52 OLP 24 NDP 12 GP 6
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Mainstreet Research September 13, 2025 958 Adults
PC 48 OLP 29 NDP 14 GP 3
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Pallas September 4, 2025 1,026 Adults
PC 45 OLP 26 NDP 17 GP 7
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Angus Reid September 1, 2025 935 Adults
PC 45 OLP 25 NDP 22 GP 4
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Abacus Data August 17, 2025 1,037 Adults
PC 53 OLP 27 NDP 12 GP 5
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Liaison August 8, 2025 800 Adults
PC 44 OLP 35 NDP 15 GP 3
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Abacus Data July 13, 2025 1,000 Adults
PC 50 OLP 28 NDP 13 GP 6
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Pallas June 29, 2025 1,080 Adults
PC 43 OLP 29 NDP 21 GP 6
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Mainstreet Research June 25, 2025 923 Adults
PC 41 OLP 32 NDP 17 GP 3
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Abacus Data June 4, 2025 1,000 Adults
PC 49 OLP 28 NDP 14 GP 5
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Léger May 24, 2025 1,025 Adults
PC 45 OLP 32 NDP 15 GP 5
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Liaison May 7, 2025 1,000 Adults
PC 46 OLP 36 NDP 13 GP 2
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National and big-regional polls only. District-level polls appear on each district’s forecast page.