Evidence and analysis of Community-Based Participatory Design (PD) and Co-Design programs are not abundant. Filling this gap allows for better understanding of (1) the value programs offer from a quantitative standpoint, and (2) how to formalize participation within PD. In this paper, we present evidence from a series of International Development Design Summits (IDDS), a PD-oriented program focused on low-cost technology co-design and co-production, in collaboration with local communities. The purpose is to provide opportunities for learning and practicing community-based PD in an intercultural setting. We examine data from five summits in Colombia between 2015-2018. We discuss the value of this approach across multiple groups, and how it can be understood as a measure of participation. We present evidence of participant benefits, including an exploratory analysis of self-perception using sentiment analysis. Finally, we discuss the challenges and potential directions for this work. This paper contributes to further understand the value of participation (the “co”) in the context of community-based PD.