36 percent of respondents supported the PCs, the Liberals came in second, with 29 percent, and the NDP had 25 percent support.
Coming in fourth with five per cent was the Green Party, followed by two per cent for the New Blue Party, and all other parties snagged three percent.
Ontario PC support in April sat at 36 percent, with the Liberals at 25 percent and the NDP at 24 percent.