This update provides a brief overview of smoking prevalence and exposure to secondhand smoke in Ontario based on the findings of the recently released 2013 Canadian Community Health Survey. The last significant change in smoking prevalence was between 2008 and 2009 for the 12+ age group, and 2010-2011 for the 12-19 year age group. Smoking prevalence did not change from the previous year for either age group. Ontarians continue to have some exposure to secondhand smoke in public places, in vehicles and in homes. Exposure to secondhand smoke did not significantly change from the 2012 estimates.