Hypertension occurs due to vasoconstriction and impaired vasodilation which causes increased vascular resistance. Hypertension is the risk factor of Cognitive impairment decreased cognitive function through the mechanism of vascular damage and toxicity. Cognitive function is a complex function in the human brain including aspects of memory, language, attention, visuospatial, and orientation. Cognitive impairment is also influenced by age, gender, physical activity, health factors, and education. The purpose of this study was to measure the effect of blood pressure on cognitive impairment in coastal populations in the working area of the Pemenang Health Center, North Lombok Regency. The research method used a cross sectional approach. The sampling method was purposive sampling. Measurement of cognitive function status using the Clock Drawing Test (CDT) questionnaire. Univariate data analysis to determine the frequency distribution of BMI research variables and the characteristics of respondents based on age, gender, educational, and occupation. Test the hypothesis using the Chi-Square test, with a probability value (p) <0.05. The total number of respondents were 188, in the hypertension group was 88 (47%) and the normotensive group was 100 (53%) respondents. The age of the dominant respondent is in the range of 36-45 years, namely 96 (51.1%). As many as 158 (84%) of respondents experienced cognitive impairment and 82 (43.6%) of them had hypertension. There was a significant difference in the incidence of cognitive impairment in the hypertension and normotensive groups (p=0.001). There was a difference in the frequency of cognitive impairment in normotensive and hypertensive respondents in coastal populations in the working area of the Pemenang Health Center, North Lombok Regency.