This observational study evaluated the prevalence of pressure ulcers in acute care facilities. In 2008 and 2009, overall prevalence was 13.5% and 12.3%, respectively. Facility-acquired prevalence was 6% and 5%, respectively. Overall prevalence was highest in long-term acute care, while facility-acquired prevalence was highest in ICUs. Overall and facility-acquired prevalence were lower in 2008-2009 compared to 2006-2007. However, in 2009 approximately 10% of all ulcers were device related.