Citizen political knowledge is conventionally measured with survey questions developed for use in the industrialized wealthy democracies. In this paper, we argue that certain characteristics of political institutions and party systems that are relatively common in unconsolidated democracies and mixed regimes are likely to constrain the acquisition of political knowledge as traditionally measured. Using data from Latin America, Africa, and the countries included in the Comparative Study of Electoral Systems, we examine the relationship between contextual factors and average levels of political knowledge across countries, measured both through civics knowledge and the ideological placement of political parties. We provide evidence consistent with the idea that citizens have fewer opportunities and are less motivated to acquire political knowledge in contexts where political institutions and actors frequently change and where young and nonprogrammatic parties are the norm.