We analyzed the municipal waste composition in three localities in southern Kosovo during 2004 and 2017. The results show that most of the municipal waste is composed by biodegradable components and at a lesser degree by cardboard, glass, plastic, metals etc. The presence and increase of hazardous waste in municipal containers was observed in all investigated localities. This study showed that there is no significant change in municipal waste composition in 2017 compared to 2004. This investigation through a case study in Prizren Municipality is a contribution to the municipal waste management in Kosovo. It highlights the importance of including the registration of individual and organized cardboard, metal and plastic operators into the municipal waste management system, in order to know the exact amount of waste produced per capita. It also emphasizes the importance of organizing separate containers for hazardous waste due to possible significant environmental and health problems.