This article aims to estimate the population-level frequencies and standardized rates of sexual assault cases in the province of Ontario. The study found that between 2002 and 2016, there were 52 780 incident cases of sexual assault in Ontario at a rate of 27.38 per 100 000 population. The highest rates were found among females aged 15 to 19 years (187 per 100 000) and 20 to 24 years (127 per 100 000).
