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The activity conducted at Diponegoro University campus will be having an impact to the surrounding environment such as greenhouse gas emissions. Mainly, activities on campus that contribute to greenhouse gasses emission are related to academic. However, at Diponegoro University, non-academic activities such as hospital, gas station, sport center and public services also contribute to greenhouse gases. Emissions considered in this study are methane gas (CH4) and nitrogen dioxide gas (N2O). The total emissions of non-academic activities are analyzed as carbon footprint with units of weight of carbon dioxide (kgCO2eq). This research was done in main campus of Diponegoro University, Tembalang, Semarang. The aim of this research is to analyze the total emissions due to non-academic activities at Diponegoro University and to create mapping of the distribution of non-academic GHG emissions at each sampling point location. The methods are based on a modification of the equation with the IPCC 2006 guidelines approach. The carbon footprint mapping is conducted using ArcGIS software. Based on this research, it is estimated that non-academic activities at Diponegoro University contributes to GHG emissions of 2.424,15 kg CO2eq per year and mainly generated by hospital activity.