As society becomes more information saturated, Extension must evaluate its educational programming and delivery methods used to facilitate adult learning. Extension professionals must have a comprehensive understanding of how adults learn. Accordingly, we conducted a needs assessment as a basis for providing professional development trainings focused on teaching adults. Our objective was to identify Extension professionals' professional development needs related to designing and facilitating programming based on andragogy. We developed a survey instrument that addressed andragogy-related topics and administered it to Extension professionals. The results indicated that professional development centered on andragogy was needed by and relevant to the study participants. We describe the study and resulting professional development training and provide associated recommendations that are applicable across Extension.