The study investigated the influence of workload, facility size, social support, and job satisfaction on commitment of long-term care staff. A cross-sectional design was used to collect data through a self-administered questionnaire from 363 staff members of nine long-term care facilities. Regression analysis revealed that workload, facility size, social support, and job satisfaction together contributed to 47% variance in the organizational commitment. Job satisfaction and social support increased organizational commitment, while large facility size and heavy work demand decreased organizational commitment in these long-term care facilities. Based on the findings of this study, implications for the administration of these facilities are discussed.