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 1126 people and was collected using the F2F method between 14.12 and 30.12. in 1999. The goal was to collect data on citizens' voting behavior and political attitudes before the 2000 parliamentary elections in Croatia (pre-election survey). The survey was conducted as part of Elections, Parties and Parliament in Croatia: 1990-2000 project.