Ontario provincial polling averages

The following are ThreeHundredEight.com's weighted polling averages for Ontario, which is tentatively scheduled to hold a provincial election on June 14, 2018. These weighted averages were last updated on September 22, 2016.
Polls included in the aggregation are weighted by date, sample size, and the track record of the polling firm. Full methodological details can be found here.


The chart below is an unweighted average of all polls conducted in each month going back to January 2010.

The chart below shows the average approval ratings over the most recent three polls for each party leader in the legislature.



The chart below shows the average premier preference over the three most recent polls for each party leader in the legislature.




Ontario Polls

All polls published since the beginning of 2016 are listed below. Parties are ordered by finishing position in the 2014 election.

Mainstreet Research (Sept. 17-18, 2016)
28% OLP, 43% PC, 23% NDP, 6% GPO
Forum Research (Sept. 12-13, 2016)
25% OLP, 45% PC, 23% NDP, 6% GPO
Forum Research (Aug. 15, 2016)
28% OLP, 41% PC, 23% NDP, 6% GPO
Forum Research (July 12, 2016)
35% OLP, 42% PC, 17% NDP, 5% GPO
Forum Research (June 21, 2016)
30% OLP, 40% PC, 21% NDP, 8% GPO
Forum Research (May 31, 2016)
30% OLP, 40% PC, 21% NDP, 7% GPO
Forum Research (Apr. 25, 2016)
34% OLP, 39% PC, 21% NDP, 5% GPO
Forum Research (Mar. 23, 2016)
30% OLP, 40% PC, 24% NDP, 5% GPO
Forum Research (Feb. 26, 2016)
27% OLP, 44% PC, 22% NDP, 6% GPO
Mainstreet Research (Feb. 16, 2016)
33% OLP, 36% PC, 26% NDP, 5% GPO

PAST PROJECTIONS

2014 Ontario provincial election