Background: social media is becoming progressively used for improving health literacy and health promotion. Objectives: this study aimed to find out the magnitude of use of social media among people of Saudi Arabia and how far they were used to send health education messages. Methods: this study was a cross sectional study was conducted on convenient sample of participants using survey monkey software. The collected surveys over one month were entered into PC computer using SPSS software. Results: it was found that the majority of participants used one sort of social media or another. Also it was found that Instagram, WhatsApp and SMS were the most preferred media. There were age and gender differences.  More than 50% of the participants received health promotion messages and they thought that it was a good idea.  Methods: A Cross sectional study was conducted on convenient sample of participants using survey monkey software. The collected surveys over one month were entered into pc computer using SPSS software. Results: it was found that the majority of participants uses one sort of social media or another. Also it was found that Instagram, WhatsApp and SMS were the most preferred media. There were age and gender differences.  More than 50% of the participants received health promotion messages and they thought it was a good idea. Conclusion: it's a good opportunity to use these preferred social media to send health education messages to the target population.