This study investigates local activism in politically challenging contexts, focusing on Cairo. In such contexts, active resident groups strive for urban improvement, while governance arrangements often disregard citizen involvement in urban and public affairs. Cairo presents an exemplary case of local activism in a politically challenging and under-researched context. The study explores the characteristics, roles, and interrelations of active resident groups with local governance arrangements and their deviations from existing literature. It employs a qualitative methodology with observations and semi-structured interviews with local officials and active residents from nine different districts. The study uses Facebook to select, observe, and analyze the activities of multiple active resident groups and contributes to theoretical frameworks for analyzing local activism in complex contexts. It reveals the dominant and absent roles and the governance dimensions (un)attainable by active residents. It also traces the sources of limited local activism in the existing governance arrangements in Cairo, highlighting the importance and difficulty of changing governance arrangements in Egypt. The study broadens our understanding of local activism in the Global South beyond dominant forms of activism.