• Statistics
  • The Institut
  • Surveys

    Quebec Cannabis Survey (QCS)

    Type of survey

    Cross-sectional survey with provincial representativeness.

    Targeted population

    Persons aged 15 and over living in Québec.

    Persons residing in the regions of Terres-Cries-de-la-Baie-James and Nunavik and those living on a reserve (for QCS 2018 and QCS 2019) or in an institutional collective household are not covered by the survey.


    2018: 10,191 individuals

    2019: 10,192 individuals

    2021: 14,034 individuals


    Prevalence and frequency of cannabis use, forms and methods of use, reasons for using cannabis and context of cannabis use, sources of supply, risk of problematic use, social norms and perceptions regarding cannabis, driving after cannabis use, cannabis use during the COVID-19 pandemic.

    Technical and methodological documentation

    Methodological or technical documents 2018

    Methodological or technical documents 2019


    Analytical products and data