Awareness of the link between breast cancer and risk factors such as family history of breast cancer and alcohol consumption may help modify health behaviors. To reduce risk factors for breast cancer among young women, it is important to understand overall levels of risk awareness and socioeconomic differences in awareness. Data from the National Survey of Family Growth 2011-2015 were used to examine awareness of two risk factors for breast cancer, positive family history and alcohol consumption, among women aged 15-44 years (n = 10,940) in the United States by presence of risk factors and by socioeconomic characteristics. Prevalence of positive family history, non-binge, and binge drinking was 30%, 29%, and 31%, respectively among women aged 15-44. Awareness of positive family history of breast cancer as a risk factor for breast cancer was 88%, whereas for alcohol consumption it was 25%. Awareness of family history as a risk factor was higher among women with positive family history of breast cancer compared to those without. Current drinkers were more likely to believe that alcohol was not a risk factor for breast cancer compared to those who did not drink. Racial/ethnic minority women and those with lower education and income had lower awareness of family history as a risk factor. Awareness of alcohol consumption as a risk factor for breast cancer was low across all socioeconomic groups. Evidence-based interventions to increase risk awareness and decrease excessive alcohol use among young women are needed to reduce the risk of developing breast cancer.