IntroductionIt is well established that a gradient exists among cigarette smokers, such that smoking is more prevalent among individuals who are of lower socio‐economic status (SES). In this study, we examined whether a similar SES gradient exists among electronic cigarette (e‐cigarette) using youth and adults in three Canadian jurisdictions.MethodsA secondary analysis of data from Ontario, Quebec and Yukon respondents (n = 58,592) to the 2017–2018 Canadian Community Health Survey was conducted. Unadjusted and adjusted logistic regression models explored SES measures: total and relative household income, and education level, separately on use of e‐cigarettes or cigarettes in the past 30 days. Models adjusted for additional socio‐demographic and psychosocial covariates.ResultsA significant inverse SES gradient existed for cigarette smoking based on education and income variables, with higher education and income associated with decreasing consumption in a stepwise manner. No SES gradient was observed for e‐cigarettes.Discussion and ConclusionsWhile a robust SES gradient was observed among cigarette smokers, no gradient for e‐cigarette use was observed. Explanations for these findings may be linked to perceptions that e‐cigarettes are healthier, have convenient designs and appealing flavours, and less stigmatised. As more becomes known about potential harms from e‐cigarettes, effective interventions may be needed to prevent the emergence of a gradient that disproportionately affects those at lowest income and education levels. Continued monitoring of e‐cigarette use patterns across SES groups is necessary for public health.