This study is based on the hypothesis that a functional relationship exists between the emergence of Korean Christian churches in America and an increasing number of Korean immigrants to the United States. The categories investigated include: (1) demographic characteristics of church membership; (2) the purely religious role of the churches; (3) the assimilative functions of the churches; (4) the relationship between clergy and laity; and (5) ethnicity as it relates to the churches. Data collected seem to support the theory and concepts presented in related literature that religion does function for the integration and survival of people in a society. In this case, Korean churches in America function as agents of religious and social assimilation, reinforce Korean ethnic identity and solidarity, and are gradually becoming a center of civil rights activities for Korean Americans. In conclusion, although Korean churches in America suffer from many problems including the lack of religious faith among members, financial difficulty, and intra-church conflict between clergy and laity, their emergence and functions are directly related to the multidimensional needs of Koreans as a minority in this country. (Author/EB)