BackgroundHypertension is a major risk factor for cardiovascular illness and premature death and is becoming more prevalent worldwide. To promote better educational strategies regarding hypertension, it is crucial to identify the most significant knowledge gaps among the general public. This study aimed to assess the knowledge of hypertension among the general public in Saudi Arabia.MethodologyA cross-sectional, questionnaire-based study was conducted in Saudi Arabia. The target population was the general public aged ≥18 in Saudi Arabia. Statistical analysis was conducted using RStudio (R version 4.1.1). Numerical data were described as mean ± standard deviation or median and interquartile range (IQR) whenever applicable. P-values <0.05 indicated statistical significance.ResultsA total of 1,404 respondents were collected. After exclusion, 1,399 records were analyzed in this study. More than half of the respondents were females (59.5%) aged 18-39 years (52.7%) and had a university degree (64.8%). Additionally, 46.0% were employed. Approximately one-quarter of the sample had hypertension (26.3%), while 73.3% had a family history of hypertension The median score was 16.0 (IQR = 12.0-18.0) with a minimum and a maximum of 0.0 and 22.0, respectively. Reliability testing revealed that knowledge items had a good internal consistency (Cronbach’s alpha = 0.859 based on 22 knowledge items). There was no significant association between knowledge and gender and having a personal history of hypertension. However, the knowledge score differed significantly by age, educational level, employment status, and having a family history of hypertension. On the multivariate analysis, knowledge scores were independently higher among participants in the higher age categories. Moreover, having a university degree, a postgraduate degree, and a family history of hypertension were independently associated with higher knowledge scores.ConclusionsThis study found that the general public in Saudi Arabia had good levels of knowledge about hypertension. Being knowledgeable about hypertension not only improves adherence to treatment plans among antihypertensive patients but also aids in avoiding its occurrence and consequences among non-hypertensive patients by adopting self-care. Serial and frequent studies on this issue are recommended to gather more evidence on this topic. Ongoing hypertension education is essential to enhance knowledge to minimize the burden of this prevalent issue.