Dissertation (MA Sociology)This study explored the impact of immigrants on socio-economic growth in Karagwe District, Tanzania. The study was guided by three specific objectives: to assess the causes of immigrants on the study area, to explore the impacts of immigrants on socio-economic growth in the study area, find out the possible measures to overcome the influx of immigrants in the study area. The study opted for a cross-sectional research design whereby a sample size of 55 informants was selected using purposive and simple random and snowball sampling techniques. The methods for data collection were in-depth interview, focus group discussion, non-participant observation and documentary review. The data was analyzed qualitatively using content analysis, pattern matching and strong expiation building. The findings of the study revealed that there are different causes that lead migrants into Tanzania including civil wars, unemployment, search for land, intermarriages, presence of refugee camps and unofficial entry. Also the findings revealed that the immigrants have an impact on social and economic growth, however, for the case of the study area the findings revealed that the migrants had more negative impact on social growth and limited impact on economic growth. The findings have also revealed that there are different measures that have been taken by the authorities to overcome the influx of migrants such as regular patrols and operations, conducting and promoting civic education and working together with other state security organs. The study concludes that causes have contributed heavily to the presence of immigrants, immigrants have both positive and negative impacts and a lot should to be done to deal with the influx of immigrants. The study recommended that the government needs to develop more strategies to overcome the immigration problem and make it contribute to both social and economic growth in the surrounding societies.