The data were collected from a representative sample of adult citizens (over 18 years old) of the Republic of Croatia via multistage stratified simple random sampling. The sample comprised 979 people and was collected using the F2F-CAPI method in February and March 2020 (due to COVID-19 restrictions, data collection stopped after 97,9% of the planned sample was realized). The goal was to collect data on citizens' voting behavior and political attitudes before the 2020 parliamentary elections in Croatia (pre-election survey).