As a result of the social and demographic changes, including the ageing population, expansion of higher education and growing wealth, the higher voter turnout in the parliamentary elections may be expected in the future. Although since 1989 the core variables determining the electoral participation, which are sex, educational level, income, professional status, place of residence, frequency of religious practices have still been the same, the voters’ profiles reveal that the relationships between them are changing. Compared to the previous years, different variables are gaining significance. Education is becoming less important, whereas the role of the financial situation as a factor contributing to the voter turnout is increasing. However, the change of the voters’ profile does not lead to marginalization of groups who usually take part in elections less frequently. The differentiation in the impact on the choice of parliamentary representatives, measured by the concentration ratios, is weakening. The reasons can be sought not only in the voting habit being established, but also in the social and demographic changes.