Scholars who study populism from an ‘ideational approach’ consider populism as a set of ideas based on a moralised anti-establishment thinking and a strong people-centrist view of politics. From this perspective, at a theoretical level, populist attitudes have the following two main contrasts: pluralism and elitism. In this article, we investigate the ideological consistency of the populism-pluralism-elitism set of attitudes among voters. Analysing data from Flanders (N = 1444), we make three main contributions. First, we show that there indeed exists an internally consistent relationship between populism, elitism, and pluralism among voters. Second, we demonstrate that this consistency only holds for the most politically sophisticated citizens. And third, we show that the relationship between populist and elitist attitudes is much more nuanced than often assumed. We show that it is possible to empirically distinguish between ‘expertise elitism’ and ‘anti-populist elitism’, two forms of elitism which relate differently to populist attitudes.