Introduction: Hypertension is an important health problem in developed and developing countries. Its control and prevention is one of the most important health problems. There was not any study about blood pressure distribution in menopausal women in Iran. This study has been planned to determine the blood pressure distribution and hypertension of Arak menopausal women in 2007.Methods: An observational study was done on a population based cross-sectional study carried out in 2007. Interviews were carried out and observations made on 458 women in Arak city, which had had a natural menopause. Women were chosen randomly by multiple clustering sampling from their postal zones. Systolic and diastolic blood pressure, pulse pressure, age at menopause, age, height, weight, the place of the birth, marriage status, income, physical activity, BMI and education levels of participants were recorded. Base on JNC-VII criteria, menopausal women with systolic pressure equal or more than 140 mmHg, diastolic pressure of 90 mmHg or more and consumption of anti-hypertension drugs had been defined as a hypertensive woman. Results: The mean age at menopause was 48.2 ±2.34 years (95% CI: 47.98- 48.41) and the mean age of enrolled women was 49 years. The prevalence of hypertension based on the JNC-VII criteria was 65.5% in our study. The mean systolic blood pressure was 138.99 ±17.57 mmHg (95% CI: 137.38-140.61) while the mean diastolic blood pressure was 83.3 ±14.26 mmHg (95% CI: 81.99- 84.61).Conclusion: The prevalence of hypertension in menopausal women compared to other studies was very high in Arak. So, it seems appropriate to study further the blood pressure distribution of the menopausal women population in order to implement better screening and therapeutic measures.