Abstract: Background: Hypertension is a prevalent health issue among the elderly, significantly affecting cardiovascular health and overall well-being. This study aims to assess the prevalence of hypertension among communitydwelling elderly individuals in Thai Nguyen City, Vietnam, and identify associated factors. Materials and Methods: A cross-sectional study was conducted from January 2023 to April 2024, involving 901 elderly participants aged 60 years and older. Participants were randomly selected from residential communities and assessed through face-to-face interviews. Hypertension was defined as a systolic blood pressure of ≥140 mmHg and/or diastolic blood pressure of ≥90 mmHg. Data on demographic characteristics, BMI, and physical activity levels were collected and analyzed using Chi-square tests and bivariate logistic regression. Results: Among the 901 participants, 36.7% were male and 63.3% were female, with 68.2% aged 65 or older. The overall prevalence of hypertension was 58.9%, higher in males (65.3%) than females (55.3%). Logistic regression analysis indicated that individuals aged 65 and older (OR = 1.961; p = 0.001) and those with a BMI of 23 or higher (OR = 1.402; p = 0.014) had an increased likelihood of hypertension. Females had a lower risk compared to males (OR = 0.658; p = 0.003). Additionally, abdominal obesity significantly increased the likelihood of hypertension in males (OR = 2.882; p = 0.014). Conclusion: This study highlights a high prevalence of hypertension in the elderly population, emphasizing the need for targeted interventions focusing on age, BMI, and waist circumference to improve health outcomes and mitigate the impact of hypertension on healthcare systems