The goal of the present study is to determine what types of emotions are displayed by mayors in social media. Their posts at the Facebook social network were tested using sentiment analysis. The study shows that the top concern of the mayors’ agenda built on Facebook is to create their positive image of someone willing to build relationships with citizens. In their personal profile pages, mayors also favour information about specific decisions rather than more general information about events in the municipality. The most important conclusion is that the mayors use emotionally charged social media posts more often than the administrators of the city organization profiles, and that these are usually positive emotions.