This paper reviews the recent literature on the demographic and social aspects of immigrant adaptation. Demographic information includes age and family structure, fertility behavior, intermarriage, and residential segregation. Social dimensions refer to native-language retention, English-language acquisition, and educational attainment. Most studies conclude that there are few significant differences between the grandchildren of immigrants and the native population in the United States overall. For example, for third-generation Mexican-American women, current fertility converges to the levels for non-Hispanic White women. Also, English fluency among Hispanics and Asians increases dramatically for subsequent native-born generations, and in some cases the transition from an immigrant's native language to English is complete by the third generation. For the Japanese, English fluency increases from one-fifth among the immigrant generation to 100 percent for third-generation Japanese-Americans. There is also evidence that success of the immigrant generation in adjusting to life in this country increases with length of residence. (Author/LHW)