Aim: In this study, we aimed to analyze the level of knowledge about Coronavirus disease-2019 (COVID-19) in patients and their relatives presented to the emergency department. Methods: In this study, a 25-item questionnaire was applied to patients and their relatives. The participants were stratified into three groups as primary-secondary school, high school or university graduation. The responses were analyzed among education groups at a significant level of p<0.05. Results: In this study, of the 212 participants, 62.7% were male. The proportion of the participants thinking “COVID-19 also affected younger individuals” was higher in participants having an education level of high school or higher (p=0.009). The willingness to receive the vaccine was significantly high among all education levels. The idea that traditional soups and gargling with salty water prevent disease was found to be more common among participants with an education level of high school or lower (p<0.05). The benefit from the opinion of the expert on media about protection against the virus was significant in participants with an education level below high school (p<0.05). Conclusion: The revision of key messages of public health specialists according to education levels will have an important role in reorganizing inaccurate knowledge in the community.