Adolescent health disparities are influenced by individuals’ health literacy. To date, the only known household factors to influence adolescent health literacy (AHL) are social capital factors of parental health literacy, parent education, and household income. Therefore, the purpose of this study was to expand the understanding of household factors that influence AHL for future interventions. A sample of 105 adolescents and their parents completed an online survey. Home environment variables included family communication, family involvement, and books in the home. A quantitative analysis of correlations and regression was employed to explore the relationship between AHL and household factors. Findings from this study suggest that parental health literacy is the best-known household facilitator of AHL. Family communication and family involvement were not correlated with AHL. The number of books in the home was correlated with AHL. A good understanding of the factors influencing AHL is necessary for developing interventions. These findings continue to lend support that AHL is heavily associated with parental health literacy. Based on the salience of these findings in the research, future health literacy interventions should consider incorporating a parent/caregiver component. Yet, what remains unknown is the mechanism between AHL and parental health literacy.