There is a dearth of psychological research with Polynesian populations in the United States Research on this population is needed to meet the demands of this increasingly growing population. This study aims to investigate the psychological well-being of an understudied Latter-day Saint (LDS) Polynesian American emerging adult group in order to better provide them with cultural-specific professional psychological services. The sample included 327 LDS Polynesian American emerging adults ranging from 18 to 26 years of age (191 females, 136 males). Specifically, this study examines the associations among coping strategies, religiosity, ethnic identity, depression, anxiety, and self-esteem. An online questionnaire was used to collect the necessary data. Descriptive statistics, bivariate correlations, and path analyses were conducted to examine relationships among variables. The results yield findings that are unique to this specific population. This study's results found family support, religiosity, and ethnic identity to be influential among LDS Polynesian emerging adults with regards to their psychological well-being. As this study mentions, identifying and recognizing the influential cultural values on well-being for this population can contribute to assisting mental health professionals provide culturally sensitive and appropriate interventions for their LDS Polynesian American emerging adult clients.