Increasing rates of Alzheimer disease and related dementia (ADRD) has resulted in greater reliance on adult day health centers (ADHCs) and their skilled workforce. Little is known about staffing in ADHCs that provide ADRD services compared with ADHCs that do not. This study examines whether there are differences in staffing between ADHCs that offer ADRD services versus those that do not, and whether the percentage of ADHC participants with ADRD is associated with staffing levels. It also examines whether staffing levels and provision of ADRD services are associated with participant outcomes.