Fond du Lac County ranks in the middle of the pack for health in the state. That according to the annual County Health Rankings released this week by the University of Wisconsin Population Health Institute and the Robert Wood Johnson Foundation. Fond du Lac County Public Health Officer Kim Mueller says Fond du Lac County ranks 34th out of 72 countie when it comes to health outcomes. Mueller says Fond du Lac County is in the top half for health factors. Mueller says the biggest health problem in Fond du Lac County is still obesity.