Immigrants affect the United States in various ways. There are a wide variety of demographic, social, economic, and fiscal effects. Immigrants are geographically concentrated, but their effects are distributed through migration and the economy, even to areas where there are few immigrants. One of the best ways to explore the immigrant effect is through the study of migration. Migration reflects immigrants' effect, both directly and indirectly, through the labor and housing markets. The main findings in this dissertation are the following. First, the concentrations of recent immigrants have a negative effect on in-migration of those with the same educational attainment, especially the in-migration of foreign-born, while there is no clear effect of recent immigrants on out-migration. Second, concentrations of recent immigrants have a stronger effect on the in-migration and out-migration of the foreign-born than they do for the native-born. Finally, there are stronger effects of recent immigrants on domestic migration of those with the same educational attainment in 2008 than was true in 2006.