This study explores the relationship between individuals' demographic characteristics and information privacy concerns (IPC) using panel data from the Korea Information Society Development Institute (KISDI) that has collected a large sample from 7809 respondents. Its goal is to address the gaps in existing information privacy literature that focuses mainly on behavioral determinants of IPC and thus has not paid much attention to the direct examination of the relationship between demographic characteristics of individuals and IPC. A few relevant studies that focus on such a relationship have produced inconsistent results. In our study, we found that while the effects of educational attainment, income level, and marriage are in line with existing studies, the effects of gender and age are at odds with existing studies. The main contribution of this study is to confirm the results of previous studies with a large sample and enables the generalization of empirical findings. In addition, the results that are in contrast to the literature can generate new research avenue. •We investigate the relationship between consumers’ demographic characteristics and information privacy concerns.•There is a nonlinear relationship between age and information privacy concerns.•Gender affects information privacy concerns differently by age.•We confirmed that the effect of income and education on IPC are inline with the previous studies.