Nearly three-quarters of US adults use at least one social media site (Pew Research, 2019 & 2021). The consistency of US adults reporting social media use indicates a dependable population base to engage in health education. Based on this data, social media has become a community for health educators to perform essentials of their professional practice such as: (1) providing and managing health education programs, (2) using data to identify community needs, (3) plan, implement, monitor, and evaluating programs, (4) link health systems, health providers, insurers, and patients to address individual and population health needs, and (5) serve as resource to assist individuals, other health professionals, or the community (Bureau of Labor and Statistics, 2021). This dissertation investigated the variations across demographic categories in social media competency among a sample of health education specialists. To examine the social media competency among health education specialists, this study used the Social Media Competency Inventory (SMCI) (Alber at al., 2015). Data were collected using the National Commission for Health Education Credentialing contact list. The current study used the SMCI survey instrument to better understand the most up-to-date landscape of social media competency in certified health education specialists. Results indicate demographic characteristics had associations with SMCI constructs of Social Media Self-Efficacy, Effort Expectancy, and Performance Expectancy. Results also indicate that access to social media at work and Social Media Self-Efficacy are predictive of Social Media. These results can be implemented into health education practice by informing future training modules and continuing education courses. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]