Research on adult Mexican immigrants residing in the United States and psychological distress is very limited. It is important to study psychological distress and its sources among adult Mexican-foreign born immigrants because this population is one that is continuing to grow, and one that should be further studied in terms of mental health given what we know about the long-term adverse effects of chronic psychological distress. In this study, I look at citizenship status, educational attainment, and insurance coverage within this population and their association with psychological distress. I hypothesize that they will all be negatively associated with psychological distress. Using the K6 scale as a measure of psychological distress, and the 2012 Los Angeles County Mexican Immigrant Health and Legal Status Survey Data, I utilize logistic regression analysis and report results from two models. In summary, my results indicated that nine percent of the 1.1 million foreign born residents of Los Angeles in 2012 were seriously psychologically distressed. In addition, two of the three explanatory variables (education and medical insurance coverage) were both statistically negatively associated with psychological distress, while citizenship status was not. In addition to education and insurance coverage, age, income, and homeownership were also statistically and significantly associated with psychological distress. Overall, education and medical insurance coverage support previous studies that demonstrate that having a higher educational attainment an having medical insurance coverage reduces one’s risk of being seriously psychologically distressed. In summary, the results implicate that having completed higher than a 10th grade level of education reduces a foreign-born Mexican adults’ chance of being seriously psychologically distressed by fourteen percent, and having medical insurance coverage reduced one’s chance of being distressed by six percent. By at least gaining the equivalent of a 10th grade level of education, and providing some form of medical insurance coverage Mexican immigrants in Los Angeles County can decrease their chances of being seriously psychologically distressed by twenty percent.