The purpose of this study is to investigate the electoral participation of Swedish inmates at correctional facilities (kriminalvårdsanstalter), using the Civic Voluntarism Model as the theoretical framework. The study aims to examine how inmates view their opportunity to exercise their right to vote, how they perceive their own political efficacy in relation to voting, and which factors influence their electoral participation. The model’s core concepts—resources, motivation and recruiting networks—serve as the foundation for identifying underlying factors that may help explain this phenomenon in the specific prison context. To address the aforementioned questions, this study employed paper-based surveys, consisting of both open questions and closed multiple choice questions, closely related to the theoretical framework this study relies on. A combination of quantitative and qualitative methods—descriptive statistics and qualitative content analysis—helped identify the most prominent factors that could explain inmates’ voting behavior. The results in this study indicate that although inmates experience that they can exercise their human right to vote, many still refrain from doing so. The findings suggest that this is primarily influenced by individual political efficacy, time constraints and the inquiry of participation. This study contributes something original by examining a Swedish context and a hard-to-access population by offering an understanding of how individual and institutional factors may affect inmates’ political voting behavior. Keywords: