Personal food system mapping is a practical means to engage community participants and educators in individualized and shared learning about food systems, decisions, and behaviors. Moreover, it is a useful approach for introducing the food system concept, which is somewhat abstract. We developed the approach to capture diversity of personal food systems within a community food system and to better understand how it might inform program development. We found mapping to be a useful tool with beneficial applications outside our intended domain. Aggregated map data also provided a useful approximation of the community food system.