Breast cancer is a leading cause of illness and death among women in the United States, being the second most common cancer after non-melanoma skin cancer. It is also the second leading cause of cancer-related deaths, with an estimated 40,000 women projected to die from it in 2012. Socioeconomic status (SES) significantly affects health outcomes for chronic diseases like breast cancer, influencing prevention, diagnosis, and treatment. Higher incidences of breast cancer are observed in areas with higher SES, and disparities in disease progression related to individual SES markers are well documented.