This article develops a GIS model of spatial health access metrics nationally and sub-nationally in South Sudan. Using publicly available data on health facilities, population, land cover and use, road networks and elevation, the authors found that in 2016 only 28.6% of the population were within 5km of a public health curative service, far below the Governments target of 70%. This is largely the result of inequitable distribution of health facilities, but also the closure of nearly 300 clinics due to conflict.