The primary task of civil society organizations is to represent the interests of their members, service users, local communities or groups (Bežovan, 2004, 196). Therefore, civil society organizations play a key role in the process of local community development by offering solutions and encouraging cooperation and solidarity (Henderson and Vercseg, 2010, 179). This research, using the example of the Healthy city association, tried to see impact of civil society organizations on the development of the local community. Using the research method of content analysis, 19 implemented projects and programs of the Healthy city association were analyzed. The obtained results indicate that the Healthy city association is focused on children and young people, takes care of vulnerable groups, invests efforts in changing the treatment of prisoners and ex-prisoners, and successfully operates in the field of environmental and cultural heritage preservation. They elaborate all their projects, programs and activities in detail in order to be as effective as possible. Their main goals are to educate children and young people about important aspects of life, that is, to empower them for successful integration into society. Also, they are persistent in their desire to meet social needs by providing opportunities to marginalized groups through education and strengthening their potential. Furthermore, they strive to improve access, treatment and impact on prisoners in and outside the prison system, and care for and preserve the environment and rich cultural heritage. The results of the analyzed projects prove that they are successfully achieving the set goals, and some projects are being upgraded and are still being implemented. Through its work, the association points to the promotion and practice of certain values, such as knowledge. Educating its citizens, informing them about various topics, conducting various educations, it has been shown how important knowledge is for a quality life and for the common good. They also advocate the promotion of equal opportunities for everyone, reminding how important it is to maintain cultural heritage and take care of the environment.