The population structure of each region is affected by economic, social, cultural and other factors which were formed directly or indirectly in the past. These factors have been crystallized in population movements both naturally (birth and death) and spa tially (migration). In fact, be aware of the mentioned components or on th e other word; effective factors on the population growth are kind of knowing the effect of economic, social, cultural and other factors on population structure. Being aware of the population an d its growth are the basis to predict future population and to determine the degree of priority of that point in the operation of different projects. Regarding the mentioned relationship, this study investigated the population movements in the present and past situations in Urmia city as the capital of West Azerbaija n province where in 1966 had 291,836 population, while 110,749of them lived in urban areas and 181,087 lived in rural areas. The population of Urmia in 1976 was 370,987 while 164419 lived in urban area and 206,568 lived in rural areas. In 1986, this popula tion reached to 539,838, while 300,746 of them lived in urban areas and 239,056 lived in rural areas. And in 1996 the city population was 725,008 (444,001 in urban area and 281,007 in rural area).According to state divisions, Urmia city has 5 sections (A nzal, Silvaneh, Sumay Bradost, Markazu Nazlo) and 20 districts and 5 cities (Urmia, Noushin, Sarv and Qushchi) and based on 1 996 population census, it has 691 villages. According to statistical information of the province, at the end of 2003, the number o f inhabited villages reduced to 609 villages. According to the last census of population and housing in 2006, the population of Urmia cit y was 856,914, and the urban population was 577,307. Attractions such as employment opportunities, recreational and cul tural and other facilities has faced Urmia city with a rapid growth in urban population.
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