Klimek M, et al. - Authors attempted to study the prevalence of diabetes among adult residents of a typical eastern Poland district as well as to ascertain the association between the prevalence of diabetes and selected sociodemographic factors. This study was conducted on one thousand, two hundred twenty-five residents of the Janów Lubelski district aged between 36 and 65 years. Results revealed that the prevalence of diabetes in the study population was 4.7%. They reported that sociodemographic factors such as gender, age, and education had an important influence on the prevalence of diabetes. In addition, marital status seems to be an influential factor.