Most studies that have examined post-concussion symptoms (PCS) across age groups have examined samples with mixed etiology. In examining the relationship between age and the development of PCS after trauma, mechanism of injury has confounded previous studies (eg, older adults more likely to fall). As the population ages, understanding the differences in minor traumatic brain injury (mTBI) symptoms and sequelae is important to effectively screen and to tailor rehabilitative services. This study aims to characterize PCS in an age-stratified sample of patients presenting to the ED after a motor vehicle collision (MVC) upon ED presentation, at 2 weeks and at 8 week follow up. Data were drawn from the AURORA Study, an ongoing longitudinal prospective multi-center study of patients who present to the emergency department (ED) after trauma exposure. The presence of mTBI was assessed using symptoms consistent with disruption of brain function (amnesia, confusion, loss of consciousness) in the setting of traumatic injury. Study assessments included a series of validated surveys on depression, anxiety and post-concussive symptoms during the ED visit and at 2- and 8-week follow-up. Participants experiencing MVC included in the present analyses were stratified into the following age groups: 18-34, 35-59, and 60+. Post-concussive symptoms were compared using multivariate analysis of variance (MANCOVA). Separate MANCOVAs were run for the different time points controlling for reported pre-trauma symptoms and demographic variables (ethnic/racial minority status, sex, and income). Participants (n=584) experiencing MVC were distributed across the 18-34 (n= 334), 35-59 (n= 219), and 60+ (n= 31) age groups. Across age groups, 287 (49%) hit their head during the MVC and 170 (29%) had initial symptoms consistent with mTBI. More than half of participants (n=317, 64%) reported increases in post-concussive symptoms from baseline through 8 weeks. Though there were no differences in the presence or absences of post-concussive symptoms (headache, dizziness, fatigue) across the age groups (F(2, 191) = 2.10, p = .13), among patients with mTBI, those 60 or older did report less anxiety (M = 5.71, SE = 1.24) than those ages 35-59 (M = 8.45, SE = 0.50), (F(2,191) = 2.73, p = .068; Mdiff = 2.74, p = .043). Similar and substantial proportions of both older and younger adults involved in an MVC reported PCS despite not reporting head injury or experiencing typical mTBI symptoms such as amnesia, confusion, and disorientation in the ED. Younger patients who experienced PCS [FB1] in the 35-59 age range reported higher levels of anxiety when compared to those in the 60 and over age group. Additional work is needed to identify and treat both older and younger patients at risk for PCS, especially when they do not report a head injury.