Youth Councils in afterschool programs can be a vital stakeholder in the programs’ performance measurement cycle. This poster outlines the efforts of a multi-service agency to engage youth councils across multiple middle and elementary school afterschool program sites to inform program practice and program improvement. Afterschool program leaders and internal evaluators partnered with youth council participants at each stage of the performance management cycle: Define, Measure, Learn and Improve (Eckhart-Queenan and Forti, 2011). From helping to define what questions should be asked and to develop administration guides to assisting in the administration of surveys and review of results, the youth council participants play a vital role in the performance management process. This partnership not only strengthens the program, but also helps to develop critical thinking skills and evaluation capacity for youth participants and program staff.