Which full-time workers in California are least likely to have health insurance? A lot of people assume it’s retail clerks and burger flippers. But helpers in the construction trades top the list at 71 percent uninsured, followed by dishwashers, plasterers, fence erectors and farm workers. See the entire list in this Sacramento Bee database compiled from US Census records. According to the data, 27 percent of full time retail workers do not have health insurance.