The goal of this project is to explain and analyze the factors such as social-demographic, economic and physical in the spatial imbalance, concentration and the segregation of the city of Mahabad. The represented research has been done in the year of 2015 and its checking methodology is based on the descriptive-analytical method. In order to gather data, the field and documentary method have been utilized. The documentary data are extracted from the statistics center of Iran’s detailed reports (2012), comprehensive (2012) and detailed plans (2014) of the city of Mahabad. Also to measure the monthly average of the families’ income of the various areas, the field model and survey distribution are utilized in this affair. First using the SAW model, the urban areas of the city of Mahabad ate rated and leveled the gap between the areas in the studied indicators is evaluated and measured using the Friedman test. Continually, the segregation indicators are used in the Geo-Segregation Analyzer software to measure and evaluate the spatial concentration and segregation. Ultimately, to measure every effect of each one of the social-demographic, economic and physical indicators on the spatial imbalance, the path analysis model is used. Results and conclusions firstly show an unfavorable development of the city of Mahabad. Also the results from the Friedman test, results from the segregation indicators, results from the path analysis model, guide us altogether that the issuing, care-needed and prioritized factor in the spatial structure of the city of Mahabad which has been the cause of the existence of gap, segregation and spatial concentration and also has the most effect on the spatial imbalance of the city of Mahabad is the physical factor and urban services and facilities in the top of them which requires a more attention to the urban management and urban planning in the affair of physical organizing.