Development of pneumonia in patients with pulmonary contusion can result in morbidity and mortality. This study examined the utility of a pneumonia risk tool for pulmonary contusion patients, which was originally developed using national level data. The study found a 21% prevalence of pneumonia diagnosis in pulmonary contusion patients at the examined level I trauma center, with patients in the high-risk group having 8 times greater odds for pneumonia diagnosis. The study also revealed increasing age and the use of mechanical ventilation as being significantly associated with pneumonia status. Early identification of risk factors for pneumonia could help direct clinician care strategies.