Abstract Background Increasing evidence points to a relation between cardiometabolic and mental health, but population-based data are scarce. We investigated the association of type 2 diabetes (T2D) risk to general and mental health with a focus on potential differences between women and men. Methods The study population comprised 5,192 adults (18+ years) without known diabetes based on data of the German Health Update (GEDA) 2022. T2D risk was assessed by the German Diabetes Risk Score (GDRS), that estimates the 5-year probability of developing T2D and was categorized into low, still low, elevated, and high risk. Sex-specific Poisson regression analyses were conducted including self-rated health (SRH), self-rated mental health (SRMH), depressive symptoms (PHQ-2) and anxiety symptoms (GAD-2) as dichotomous dependent variables and age, educational level, living alone, region of residence, and social support as covariables. Results Women had a higher prevalence of low T2D risk (66.1%) and a lower prevalence of high T2D risk (9.4 %) than men (55.3% vs. 16.3%). Compared to those with low T2D risk, women and men with a high T2D risk were less likely to report very good/good SRH (women: prevalence ratio: 0.63; 95% confidence interval: 0.51-0.79; men: 0.69; 0.57-0.84) or excellent/very good SRMH (women: 0.53, 0.39-0.73; men: 0.85, 0.63-1.15). Further, those with a high T2D risk had a higher risk of depressive symptoms (women: 1.71, 1.05-2.81; men: 2.23, 1.22-4.05) and anxiety symptoms (women: 1.84, 1.03-3.29; men: 2.73, 1.09-6.81). No statistically significant interactions between sex and T2D risk were observed regarding the included health outcomes. Conclusions A high T2D risk is associated with a lower probability of a favourable SRH and SRMH and a higher risk of depressive and anxiety symptoms in men and women. The underlying mechanisms need further identification, in order to design synergistically beneficial health promotion for cardiometabolic and mental health. Key messages • No sex-specific differences in general and mental health were found in people at high T2D risk. • Further research is needed to identify the underlying mechanism to improve general and mental health.