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The large population of regencies or cities in Central Java causes high consumption of plastics and after use will eventually be discarded. Plastic waste needs to be monitored to see differences in the level of plastic waste produced by each region and the preparation of further waste management plans. The aim of this study was to examine the plastic waste index in Central Java as a monitoring activity using population data. The method used in this study is to divide the total population in each district or city by the total population in Central Java. The plastic waste index value is calculated from year 1990, 2000, 2010, and 2018 to see its progress and will be made into a basic model or space monitoring model map using GIS. The result is that the highest plastic waste is Brebes Regency for the last 28 years with an average index of 0.053 and the lowest is Magelang City with an average index of 0.004. Information about the level of plastic waste in the area can be represented in maps through population data and becomes basic information that can be used for further research.