Despite the widespread and long-standing use of demonstration sites in Extension, there is little empirical evidence to inform how best to design them. We report data from 513 producers in three regions of Indiana whom we surveyed about sources of information for farm management decisions, the usefulness of demonstrations, and preferences and factors that influence their attendance at demonstrations. In general, respondents had positive opinions about demonstration events and high levels of agreement regarding their usefulness. Lack of awareness of demonstrations was the greatest single factor leading to nonattendance. We provide recommendations for organizing demonstration events based on the preferences of producers we surveyed.