The purpose of this study was to research the level of satisfaction teachers received from communication within their working environment, their sense of the effectiveness of the institution itself, as well as the relationship between these factors. A quantitative method was used in the study. A total of 296 questionnaires were answered by teachers aged 25-64. Statistical analysis of the data was performed using the statistical software SPSS, while for the implementation of the statistical tests we applied the independent-samples T-test parametric, as well as one-way ANOVA, Kruskal-Wallis, and Mann-Whitney parametric statistical criteria. According to the results, the teachers showed high levels of satisfaction with the communication related to their feedback and believed that both parents and the local community do not participate actively in the school life. The development of an effective communication system within an educational institution can potentially become the driving force for effective functioning. The study complements the existing research on communication as a factor in the effectiveness of an educational organization. It highlights the dynamics of the teachers' association to the greatest possible extent, attempting to link the communication factor to all aspects of school effectiveness.