In this paper, research has been conducted about the political literacy of high school students in Ilok. The main goal of this research is to examine the level of political knowledge and political participation between the students of the Gymnasium and vocational program of High school Ilok. Furthermore, the paper also compares the political literacy of high school students in Ilok and the high school graduates in the entire Republic of Croatia. Obtained results have shown that students of Gymnasium have low political knowledge and low political engagement, but still higher than students of vocational programs. In the results, it is very obvious that students of vocational programs lack formal subjects where they would learn about fundamental political knowledge. Comparing political knowledge and political engagement of high school students in Ilok and high school graduates in the Republic of Croatia, the results have shown that Croatian graduates have more political knowledge and they are more involved in social and political forms of such engagement, while high school students in Ilok are more engaged like members of certain organizations. Concluded results of this research import on the need for civic education into the formal one, so that students can acquire knowledge, skills, and values that are appropriate to democratic political culture.