A bidimensional acculturation framework cannot account for multiple destination cultures within contemporary settlement societies. We propose and test a tridimensional model among Jamaican adolescent-mother dyads in the United States compared with Jamaican Islander, European American, African American, and other Black and non-Black U.S. immigrant dyads (473 dyads, M adolescent age = 14 years). Jamaican immigrants evidence tridimensional acculturation, orienting toward Jamaican, African American, and European American cultures. Integration is favored (70%), particularly tricultural integration; moreover, Jamaican and other Black U.S. immigrants are more oriented toward African American than European American culture. Jamaican immigrant youth adapt at least as well as non-immigrant Jamaican and U.S. peers, although assimilated adolescents, particularly first generation, have worse sociocultural adaptation than integrated and separated adolescents.