Water resource allocation plan requires more attention due to population growth and increased demand for water. Earlier researchers have focused on modern water allocation optimization methods. In order to allocate demand to consumption nodes in Ilam campus, Water GEMS and ArcGIS software were used. Shapefiles for bordering the study area boundary locations, node elevation, and population density in different parts of the university were prepared using ArcGIS software. Hydraulic simulation for allocation to each of the nodes was carried out with respect to population density, point load data, and area load data. Results showed that the maximum amount required for water distribution network with respect to population density was 30.48 liters per second. Also, the maximum need for the network with respect to point load data and area load data were as 27.23 liters per second. The water transmission line has the ability to pump approximately 17.61 liters per second while the amount needed for distribution network is exceeding this figure. As a result, the transmission line design is not appropriate.
