The indicator (key figure) presented here is part of the Diabetes Surveillance indicator set (research project at the Robert Koch Institute 2015 – 2024) with a total of 40 defined indicators or indicator groups. In addition to the indicator results, the methodological approach and the data source are described and the data are provided in aggregated form. All indicators are categorised into four fields of action: (1) Reducing the risk of diabetes, (2) Improving the early detection and treatment of diabetes, (3) Reducing the complications of diabetes, and (4) Reducing the burden and costs of disease. There are indicators for children and adolescents as well as for adults. The results of the Diabetes Surveillance at the end of the project in 2024 are published on the publication server of the Robert Koch Institute (https://edoc.rki.de/handle/176904/12467). In future, some diabetes indicators will be regularly updated with new data as part of the extended surveillance of non-communicable diseases at http://www.gbe.rki.de.