Introduction and objective: The aim of the study was to calculate, on the basis of the database of the National Health Fund and the Central Register of Insured People, the mortality rate of the general population of Poland in 2012 among patients with primary diagnosis of stroke. Material and methods: In 2012, a total of 54,335 people, including 24,106 males and 30,227 females, died of various causes with primary diagnosis of stroke. The overall death rate of females in Poland in 2012 was 129.24 / 100,000 of the general population, and of males to 152.03 / 100,000 of the general population. One-third (33.3%) of patients who died in 2012 with a diagnosis of stroke were also diagnosed with diabetes. Results: The overall death rate for males with no known diabetes was 92.62 / 100,000 with no known diabetes and for females 104.58 / 100,000 with no known diabetes. In contrast, the overall mortality of males with diabetes was 729.56 / 100,000 with known diabetes and 858.00 / 100,000 of female patients with known diabetes. Conclusions: Among people with known diabetes up to and including 64 years of age, the overall mortality was 14 times higher than the overall mortality in this age group, but in people without diabetes. On the other hand, the overall mortality of people with a stroke in the age group over 65 inclusive was 1.5 times higher compared to the overall mortality of people without diabetes in the same age group.