The cost of health care affects every aspect of the U.S. health care system. It dominates political discussions on health care, impacts decisions about insurance coverage, and ranks at the top of things Americans worry about. It also plays a significant role in the patient experience from decisions on whether or not to get care to the impact of medical bills after receiving care. This data note summarizes the most recent Kaiser Family Foundation polling on the public’s experiences with and worries about health care costs.