Food security civil society organizations (FSCSOs) are key institutional players in the Global South, yet researchers have not adequately examined their size, scope, or location within urban areas. To fill this gap, this article analyzes Johannesburg's FSCSOs using quantitative survey data and spatial analysis. Data findings suggest that FSCSOs’ resources are unevenly distributed across Johannesburg, with larger, privately resourced FSCSOs located in white suburbs and smaller, unstable, turnover-prone FSCSOs located in black townships and informal settlements. Overall, these data suggest that the city's network of FSCSOs is spatially polarized and weakest in areas where food insecurity is the greatest.