First-generation Latinx immigrant youth from the Northern Triangle (NT; El Salvador, Guatemala, and Honduras) face unique risks for experiencing stressors across the phases of migration, which could exacerbate their mental health. This study aimed to (a) identify and characterize unique latent profile groups based on response patterns to immigrant minority stress and psychosocial protective factor items and (b) examine the associations of latent profile membership with depression and anxiety symptoms among NT immigrant youth, controlling for study covariates (i.e., postmigration victimization and forced immigration-related family separation). Primary surveys assessing immigrant minority stress and psychosocial protective factors (i.e., ethnic identity importance, and family, peer, and school support) were administered (N = 172, age range = 14-21, 63% female). Latent profile analysis (Aim 1) and multiple linear regression (Aim 2) were conducted to examine the study aims. A three latent profile model was identified: (a) moderate immigrant minority stress and low psychosocial protection (weak resources), (b) moderate immigrant minority stress and moderate psychosocial protection (average resources), and (c) low immigrant minority stress and high psychosocial protection (strong resources) during postmigration. Multiple linear regression demonstrated that latent profile membership was significantly associated with mental health. Protective associations with mental health were consistently present among the strong resources group. Detrimental associations with mental health were consistently present among the weak resources group. The average resources group demonstrated both protective and detrimental associations with mental health. Postmigration victimization and forced immigration-related family separation covariates were significantly associated with mental health. Findings provide a foundation for further mental health prevention research with NT immigrant youth.