After over 20 years of multiple studies showing the efficaciousness of evidence-based therapies (EBTs) on trauma survivors, this study continues the initiation of an important direction that research with regards to EBTs on trauma survivors of diverse ethnoracial groups needs to take. The study attempted to show if EBTs are effective in reducing symptoms related to trauma from a real life setting population of trauma survivors from diverse ethnoracial backgrounds. The research also aimed to show if the EBTs in this study are effective within each ethnoracial group. Finally, the research explored if there are EBTs that are more effective on reducing certain trauma related symptoms over others within ethnoracial groups. The findings of this quantitative pre-post design research affirms the direction of previous research that demonstrates EBTs are likely applicable to diverse ethnoracial groups in a real world setting. Results also suggest that EBTs provided by frontline mental health providers in a community based setting are generally effective on numerous trauma symptoms and on the low-income, culturally diverse sample in the current study. Implications, limitations, and suggestions for further research are discussed.