Aim. To assess the prevalence of psychological stress (PS) using the Perceived Stress Scale-10 (PSS-10) in various Russian regions and to analyze PS associations with socio-demographic characteristics and behavioral risk factors and some non-communicable diseases (NCDs).Material and methods. We studied representative samples of the population aged 35-74 years in the Russian regions, examined as part of the Epidemiology of Cardiovascular Diseases in Regions of Russian Federation-3 (ESSE-RF3) study. The subjects were interviewed using a questionnaire containing a section on the psychological stress — PSS-10. For men, PS levels are ranked as follows: "Low" — 0-11, "Medium" — 12-17, "High" — 18-40. For women, PS levels are ranked as follows: "Low" — 0-13, "Medium" — 14-19, "High" — 20-40. Statistical analysis was carried out using the open-source R 3.6.1 environment.Results. The average PS level was 12,0±7,3 (men: 10,7±7,0; women: 13,1±7,4). Every fifth person (20,3%) in the Russian population has a high PS level, with higher PS rates among women compared to men (high PS level — 21,6 vs 18,9%, respectively). A high PS level was associated with the income level (average or low), no marriage, unemployment, low level of physical activity, depression, anxiety, NCDs (type 2 diabetes, myocardial infarction, stroke), additionally for women — hypertension.Conclusion. The Russian population is characterized by a high PS prevalence, while PS rates are higher among women, which must be taken into account when predicting the NCD risks.