This inaugural issue of The Illawarra Population Health Profiler looks at the burden of diabetes mellitus among people resident in the Illawarra Health Area, and each of its Local Government Areas. The relative impact of the condition in the population is compared to the NSW average. Prevalence of diabetes is described as well as the burden, as measured by the levels of excess hospitalisation and self-reports of interference with regular activities. Information is also provided on levels of management. The overview is followed by the source of the data and the methods used, followed by more detailed analysis.