Abstract. Urban Green Space (UGS) is one of the essential components of the urban systems for promoting quality of life in urban areas and sustainability. Planning and designing accessible public green spaces are critical for urban life as cities' most available natural environment. Walkable accessibility of UGS is one of the essential indicators of people's health and wellbeing. This paper aims to evaluate the walking accessibility of UGS through Adelaide Metropolitan Area at the local councils level using Network Analyst in GIS. The results show that the councils of Norwood Payneham and St Peters, Charles Sturt and the City of Adelaide have the most walking accessibility to UGS for the residents in their area. In contrast, Mount Barker, Playford and Adelaide Hills councils have the least walking accessibility. Therefore, UGS distribution is unequal throughout the study area, and local councils close to or around the inner part of the metropolitan area have more accessible green spaces.