6573 Background: Caregivers play a vital role in the support and treatment of cancer patients. Caregiver well-being can impact patient-perceived quality of care. The study objectives were to compare self-reported health and access to care between cancer caregivers and non-caregivers, and to determine the relationship of caregiving burden to self-reported health and access to care. Methods: We used data from the Caregiver and Core Modules of the 2015 BRFSS, an annual federal survey of health-related behavior, health conditions, and preventive service use. Caregiver burden was assessed by time (hours per week and duration of caregiving) and task (personal care and household management tasks). Measures of self-reported health and access to care between cancer caregivers and non-caregivers were compared using t-test or Chi-Square testing. Associations of caregiver burden with self-reported health and access to care were assessed with linear and logistic regressions. Results: 1,910 cancer caregivers and 84,412 non-caregivers were included. Compared to non-caregivers, cancer caregivers were more likely to report inability to see a physician due to cost (15% vs 9%; p < 0.001), depression (25.0% vs 17.9%; p < 0.001), and poor mental health (mean days per month 5.7 vs 3.1; p < 0.001). Compared to caregivers with low task burden, those with moderate or high task burden reported both more poor mental health days (moderate ß = 1.8, 95% CI 0.5 – 3.1, p = 0.008; high ß = 2.0, 95% CI 0.6 – 3.3, p = 0.004) and increased likelihood of cost barriers (moderate OR 1.6, 95% CI 1.03 – 2.5, p = .035; high OR 1.8, 95% CI 1.2 – 2.9, p = .008). Increased time burden was associated with more poor mental health days (moderate ß = 1.5, 95% CI 0.2 – 2.7, p = .02; high ß = 4.4, 95% CI 3.3 – 5.6, p < .001) but not cost barriers. No differences in insurance, personal health provider, medical check-ups, or self-reported poor physical health were identified. Conclusions: Cancer caregivers are more likely than non-caregivers to report poor mental health, depression, and difficulty seeing a physician due to cost. Caregivers with high caregiving burden are at increased risk of experiencing poor mental health and cost barriers to medical care.